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Health/Food Posts Tagged as 'Science'
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Much of the research examining identity has focused on traits or dynamics that are considered universal for all human beings (e.g., self-esteem, introversion-extraversion, and levels of anxiety) regardless of race, culture, gender, sexual orientation, or class. At this level, researchers and clinicians treat human experiences as being similar, for example, the experiences of aging, coping with life stress, and interpersonal relationships. However, the extent to which any one of these traits and dynamics may be high or low, prominent, amplified, or muted differs as a result of sociodemographic categories such as culture, class, gender, ethnicity, or sexual orientation.
Identity, Self-Esteem and Self-Compassion
Will There Ever Be a Cure for Addiction?
From drinking hand-sanitizing gels to using synthetic marijuana, our society is constantly inventing new ways to get high. When one substance is banned, another quickly takes its place. What drives this never-ending hunt for the next high?
One important motivator is the pleasure principle. The quest for pleasure is a fundamental part of being human. It helps us meet our basic needs by pushing us to work towards specific goals.
Drugs provide an instant shortcut to our brain’s pleasure center. They flood our brains with dopamine and condition us to seek the next high. As a result, our bodies begin reducing their natural dopamine output. With repeated drug use, pleasure dissipates but the cravings remain. Thus, drugs hijack our natural drive for pleasure. Addicts pursue drugs despite the fact that the pleasure they experience from them progressively diminishes.
One important motivator is the pleasure principle. The quest for pleasure is a fundamental part of being human. It helps us meet our basic needs by pushing us to work towards specific goals.
Drugs provide an instant shortcut to our brain’s pleasure center. They flood our brains with dopamine and condition us to seek the next high. As a result, our bodies begin reducing their natural dopamine output. With repeated drug use, pleasure dissipates but the cravings remain. Thus, drugs hijack our natural drive for pleasure. Addicts pursue drugs despite the fact that the pleasure they experience from them progressively diminishes.
Humans Can Reverse Their Biological Age, Shows a 'Curious Case' Study
In a small, 1-year clinical trial published Thursday in the journal Aging Cell, nine participants took three common medications — growth hormone and two diabetes drugs — and reversed their biological age by 2-and-a-half years on average. Greg Fahy, Ph.D., lead author of the study and chief science officer of anti-aging therapeutics company Intervene Immune, tells Inverse that this research proves the concept that biological aging may not be unstoppable.
“One of the lessons that we can draw from the study is that aging is not necessarily something that is beyond our control,” he says. “In fact it seems that aging is largely controlled by biological processes that we may be able to influence.”
“One of the lessons that we can draw from the study is that aging is not necessarily something that is beyond our control,” he says. “In fact it seems that aging is largely controlled by biological processes that we may be able to influence.”
New study finds vegetarianism and veganism could lead to higher risk of stroke
If you were considering swearing off meat for health reasons, maybe don't throw away that bacon cheeseburger just yet. At least not if all that you're trying to prevent is a stroke. A report by researchers at Oxford published in the British Medical Journal found that out of nearly 50,000 people studied, vegetarians and vegans had a 20 percent higher rate of stroke than meat eaters.
MONSTER HYBRID TUMBLEWEED SPECIES IS TAKING OVER CALIFORNIA, SCIENTISTS WARN 
A new invasive species of tumbleweed that can grow up to six feet in height is taking over parts of California—and scientists are warning it could spread even further as climate change makes its growing conditions more favorable.
Salsola ryanii was first identified in California in 2002. It is a hybrid made up of two other invasive species—Salsola tragus, which is native to Russia and China, and Salsola australis, from Australia and South Africa. The latter, scientists say, is "one of the world's worst weeds" and is currently found in 48 U.S. states. The new species, is however, far bigger and faster growing than its parents, reaching about six feet in height.
A tumbleweed is a plant that breaks away from its roots towards the end of summer. It is blown around by the wind—its means of seed dispersal. In doing this, tumbleweeds cause huge problems. They can lead to traffic accidents and damage property. Invasive species also cause problems for the agriculture industry and native ecosystems.
Salsola ryanii was first identified in California in 2002. It is a hybrid made up of two other invasive species—Salsola tragus, which is native to Russia and China, and Salsola australis, from Australia and South Africa. The latter, scientists say, is "one of the world's worst weeds" and is currently found in 48 U.S. states. The new species, is however, far bigger and faster growing than its parents, reaching about six feet in height.
A tumbleweed is a plant that breaks away from its roots towards the end of summer. It is blown around by the wind—its means of seed dispersal. In doing this, tumbleweeds cause huge problems. They can lead to traffic accidents and damage property. Invasive species also cause problems for the agriculture industry and native ecosystems.
Cyborgs will replace humans and remake the world, James Lovelock says
For tens of thousands of years, humans have reigned as our planet's only intelligent, self-aware species. But the rise of intelligent machines means that could change soon, perhaps in our own lifetimes. Not long after that, Homo sapiens could vanish from Earth entirely.
That’s the jarring message of a new book by James Lovelock, the famed British environmentalist and futurist. “Our supremacy as the prime understanders of the cosmos is rapidly coming to end,” he says in the book, "Novacene." “The understanders of the future will not be humans but what I choose to call ‘cyborgs’ that will have designed and built themselves.”
That’s the jarring message of a new book by James Lovelock, the famed British environmentalist and futurist. “Our supremacy as the prime understanders of the cosmos is rapidly coming to end,” he says in the book, "Novacene." “The understanders of the future will not be humans but what I choose to call ‘cyborgs’ that will have designed and built themselves.”
Tree-planting projects may not be so green
Brides and grooms do it. Transatlantic travellers do it. And you might even be getting it for Christmas. Neutralising your carbon emissions is becoming the must-do activity for the eco-conscious citizen. But now an international team of scientists has raised an unexpected objection: some tree-planting projects may, they suggest, be doing more harm than good.
Carbon offsetting allows people to pay someone else to atone for their climate sins by soaking up the CO2 that they produce. And with the consequences of global warming becoming more apparent, more Britons are opting to undo their personal share of the damage.
Last year companies and individuals in the UK spent around £4m offsetting carbon emissions. The Kyoto protocol allows member countries to do the same through carbon trading.
But it seems the guilt-free option is not as simple as writing a cheque and leaving it to someone else to sort out. Researchers have found that planting trees to soak up carbon can have detrimental knock on effects. "I believe we haven't thought through the consequences of this," says team-member Robert Jackson at Duke University in North Carolina, "I think the policy could backfire on us, but it will take decades to play out."
Carbon offsetting allows people to pay someone else to atone for their climate sins by soaking up the CO2 that they produce. And with the consequences of global warming becoming more apparent, more Britons are opting to undo their personal share of the damage.
Last year companies and individuals in the UK spent around £4m offsetting carbon emissions. The Kyoto protocol allows member countries to do the same through carbon trading.
But it seems the guilt-free option is not as simple as writing a cheque and leaving it to someone else to sort out. Researchers have found that planting trees to soak up carbon can have detrimental knock on effects. "I believe we haven't thought through the consequences of this," says team-member Robert Jackson at Duke University in North Carolina, "I think the policy could backfire on us, but it will take decades to play out."
Study shows social media may harm teens' mental health
CNN's Dr. Sanjay Gupta explains the details of a new study linking social media use to mental health issues in teens.
How Does Social Media Affect Girls? They Feel Effects More Strongly Than Boys, New Research Says
we need to stop making mental illness look cool on social media
The bald facts about diet: to avoid hair loss, you need meat
"Eating a healthy, balanced diet and avoiding excessive stress, extreme diets and fast weight loss are vital in maintaining healthy hair growth," says Lisa Caddy, a certified trichologist with Philip Kingsley, a leading authority in hair and scalp health from London.
The irony: what many people think of as a healthy diet - that is, mainly consisting of fruit and vegetables, with minimal protein and calories - often doesn't include all the elements needed for optimum hair growth, Caddy says.
To function at their best, the cells in the hair and throughout the body need a balance of proteins, complex carbohydrates, iron, vitamins and minerals.
Meats, especially red meats, are particularly important because they're the richest sources of ferritin, a stored iron that helps the body produce hair cell protein.
The irony: what many people think of as a healthy diet - that is, mainly consisting of fruit and vegetables, with minimal protein and calories - often doesn't include all the elements needed for optimum hair growth, Caddy says.
To function at their best, the cells in the hair and throughout the body need a balance of proteins, complex carbohydrates, iron, vitamins and minerals.
Meats, especially red meats, are particularly important because they're the richest sources of ferritin, a stored iron that helps the body produce hair cell protein.
Here's what happens to your body when you cut out dairy
Making any change to your diet, whether large or small, can be nerve-wracking. When your body has become so accustomed to consuming and digesting a product, it can be concerning to completely eliminate it. One product that more and more people seem to be cutting out is dairy.
Whether you want to cut out dairy for ethical reasons, because consuming it doesn't make your body feel great anymore, or because you've seen it have a positive impact on others — such as with celebrity Khloe Kardashian who credits the elimination of dairy for part of her weight loss— this could be a great choice for you. There's a lot you need to consider, however, before you make the leap, including how your body could react.
Here's what could happen to your body if you cut our dairy.
Whether you want to cut out dairy for ethical reasons, because consuming it doesn't make your body feel great anymore, or because you've seen it have a positive impact on others — such as with celebrity Khloe Kardashian who credits the elimination of dairy for part of her weight loss— this could be a great choice for you. There's a lot you need to consider, however, before you make the leap, including how your body could react.
Here's what could happen to your body if you cut our dairy.
Why Drinking Water All Day Long Is Not the Best Way to Stay Hydrated
Water is cheap and healthy. And drinking H2O is an effective way for most people to stay hydrated. The National Academy of Medicine recommends that adult women and men drink at least 91 and 125 ounces of water a day, respectively. (For context, one gallon is 128 fluid ounces.) But pounding large quantities of water morning, noon and night may not be the best or most efficient way to meet the body’s hydration requirements.
“If you’re drinking water and then, within two hours, your urine output is really high and [your urine] is clear, that means the water is not staying in well,” says David Nieman, a professor of public health at Appalachian State University and director of the Human Performance Lab at the North Carolina Research Campus. Nieman says plain water has a tendency to slip right through the human digestive system when not accompanied by food or nutrients. This is especially true when people drink large volumes of water on an empty stomach. “There’s no virtue to that kind of consumption,” he says.
“If you’re drinking water and then, within two hours, your urine output is really high and [your urine] is clear, that means the water is not staying in well,” says David Nieman, a professor of public health at Appalachian State University and director of the Human Performance Lab at the North Carolina Research Campus. Nieman says plain water has a tendency to slip right through the human digestive system when not accompanied by food or nutrients. This is especially true when people drink large volumes of water on an empty stomach. “There’s no virtue to that kind of consumption,” he says.
First human-monkey chimera raises concern among scientists
Efforts to create human-animal chimeras have rebooted an ethical debate after reports emerged that scientists have produced monkey embryos containing human cells.
A chimera is an organism whose cells come from two or more “individuals”, with recent work looking at combinations from different species. The word comes from a beast from Greek mythology which was said to be part lion, part goat and part snake.
The latest report, published in the Spanish newspaper El País, claims a team of researchers led by Prof Juan Carlos Izpisúa Belmonte from the Salk Institute in the US have produced monkey-human chimeras. The research was conducted in China “to avoid legal issues”, according to the report.
Chimeras are seen as a potential way to address the lack of organs for transplantation, as well as problems of organ rejection. Scientists believe organs genetically matched to a particular human recipient could one day be grown inside animals. The approach is based on taking cells from an adult human and reprogramming them to become stem cells, which can give rise to any type of cell in the body. They are then introduced into the embryo of another species.
A chimera is an organism whose cells come from two or more “individuals”, with recent work looking at combinations from different species. The word comes from a beast from Greek mythology which was said to be part lion, part goat and part snake.
The latest report, published in the Spanish newspaper El País, claims a team of researchers led by Prof Juan Carlos Izpisúa Belmonte from the Salk Institute in the US have produced monkey-human chimeras. The research was conducted in China “to avoid legal issues”, according to the report.
Chimeras are seen as a potential way to address the lack of organs for transplantation, as well as problems of organ rejection. Scientists believe organs genetically matched to a particular human recipient could one day be grown inside animals. The approach is based on taking cells from an adult human and reprogramming them to become stem cells, which can give rise to any type of cell in the body. They are then introduced into the embryo of another species.
Deadly Virus Found In Florida, Causes Brain Swelling From Mosquito Bites
The latest U.S. healthcare news warns the rapid spread of a deadly mosquito-borne virus known as Eastern equine encephalitis (EEE) in Florida that causes brain-swelling.
According to reports, many sentinel chickens have tested positive for EEE.
The confirmed presence of the virus in Orange County’s sentinel chickens have raised “the risk of transmission to humans,” according to a statement by the county’s department of health.
Sentinels are fowls tested for the West Nile virus and EEE. Their blood samples may show the presence of the diseases but it is not necessary that they would suffer from the viruses.
The EEE virus spreading to humans via carriers like mosquitoes will lead to brain infection and swelling.
According to reports, many sentinel chickens have tested positive for EEE.
The confirmed presence of the virus in Orange County’s sentinel chickens have raised “the risk of transmission to humans,” according to a statement by the county’s department of health.
Sentinels are fowls tested for the West Nile virus and EEE. Their blood samples may show the presence of the diseases but it is not necessary that they would suffer from the viruses.
The EEE virus spreading to humans via carriers like mosquitoes will lead to brain infection and swelling.
Health officials have confirmed that an individual in Maine is sick with Powassan virus disease, marking the first time since 2017 that a person in the state has come down with the rare and serious tick-borne illness.
The Maine Center for Disease Control and Prevention announced Wednesday that a southern Maine resident was hospitalized for Powassan encephalitis—brain inflammation associated with the virus—after showing symptoms in late June. The announcement did not specify the individual’s current condition, but health officils doctors to stay vigilant about the potential spread of Powassan throughout the summer and early fall.
Here’s what to know about the tick-borne Powassan virus disease.
The Maine Center for Disease Control and Prevention announced Wednesday that a southern Maine resident was hospitalized for Powassan encephalitis—brain inflammation associated with the virus—after showing symptoms in late June. The announcement did not specify the individual’s current condition, but health officils doctors to stay vigilant about the potential spread of Powassan throughout the summer and early fall.
Here’s what to know about the tick-borne Powassan virus disease.
Climate change: 12 years to save the planet? Make that 18 months
Do you remember the good old days when we had "12 years to save the planet"?
Now it seems, there's a growing consensus that the next 18 months will be critical in dealing with the global heating crisis, among other environmental challenges.
Last year, the Intergovernmental Panel on Climate Change (IPCC) reported that to keep the rise in global temperatures below 1.5C this century, emissions of carbon dioxide would have to be cut by 45% by 2030.
But today, observers recognise that the decisive, political steps to enable the cuts in carbon to take place will have to happen before the end of next year.
The idea that 2020 is a firm deadline was eloquently addressed by one of the world's top climate scientists, speaking back in 2017.
Now it seems, there's a growing consensus that the next 18 months will be critical in dealing with the global heating crisis, among other environmental challenges.
Last year, the Intergovernmental Panel on Climate Change (IPCC) reported that to keep the rise in global temperatures below 1.5C this century, emissions of carbon dioxide would have to be cut by 45% by 2030.
But today, observers recognise that the decisive, political steps to enable the cuts in carbon to take place will have to happen before the end of next year.
The idea that 2020 is a firm deadline was eloquently addressed by one of the world's top climate scientists, speaking back in 2017.
