May 9, 2017

Health Roundup: Pot for elderly, salt to lower blood pressure, coffee for pain, cheese and dairy good

Could marijuana hold a key to keeping our brains forever young? .

There are many indications that weed can impair the developing adolescent brain....But what does cannabis do to the elderly brain?  A coalition of researchers from Germany and Israel published a study in Nature Medicine that examined the different effects of tetrahydrocannabinol, the psychoactive compound in weed that's also known as THC, on young and old mice.

Their findings were provocative: A low dose of THC... "reversed the age-related decline in cognitive performance of mice aged 12 and 18 months." ...The experiment focused on learning, spatial skills and memory. While older mice typically did not perform as well as young ones in mazes or with location-recognition tasks — an outcome consistent with the decline of brain function in aged individuals — they performed just as well as their younger cohort under the influence of THC. Meanwhile, younger mice given doses of THC demonstrated worse performance, more in line with that of average old mice

Clinical trials on humans will start later this year.

'A toke a day keeps the dementia away.'

Marijuana could help reverse brain aging in senior citizens, especially Alzheimer’s patients, according to a new study....“We repeated these experiments many times,” Andreas Zimmer, head author of the study, told The New Scientist. “It’s a very robust and profound effect.” The findings were published May 8 in Nature Medicine.

“If we can rejuvenate the brain so that everybody gets five to 10 more years without needing extra care then that is more than we could have imagined,” said Andras Bilkei-Gorzo, one of the study’s co-authors. "The treatment made the young brain old and the old brain young," he said. "So that was something that was above our imagination."  If it is shown to help the memories of aging adults, Bilkei-Gorzo says the psychoactive ingredient could be taken in the form of an herbal tea.

Higher sodium, lower blood pressure. You read that right.

In another blow against decades of accepted medical wisdom, one of the most prestigious, long-running studies reports that lowering sodium intake doesn’t reduce blood pressure.

The study also implies that most Americans are consuming a perfectly healthy amount of salt, the main source of sodium. But those who are salt-sensitive, about 20 to 25 percent of the population, still need to restrict salt intake. Consuming fewer than 2,500 milligrams of sodium daily is actually associated with higher blood pressure, according to the Framingham Offspring Study report, given today. The study is an offshoot of the groundbreaking Framingham Heart Study. Both are projects of the National Heart Lung and Blood Institute and Boston University.
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The report directly contradicts advice from the American Heart Association, which recommends consuming less than 1,500 milligrams of sodium a day to reduce blood pressure and risk of heart disease.

Why Everything We Know About Salt May Be Wrong  New York Times

Forget ibuprofen - grab a coffee:

Coffee is far better treatment for chronic pain than over-the-counter pills, new research shows. Feeling tired drastically increases pain sensitivity, the study found. To counteract that, scientists from Boston Children's Hospital gave exhausted lab mice either painkillers, coffee or more time asleep. They found the most wide-awake mice - after a jolt of caffeine or a long sleep - were more impervious to pain than those on painkillers.In the caffeine-drinking mice, they saw a rush of dopamine to the brain's pleasure center, which alleviated their feelings of pain.  Sleep also abated pain sensitivity better than over-the-counter pills

Why eating cheese will not harm your health:

Eating dairy does not raise the risk of suffering a heart attack or stroke, a team of international experts have found. Scientists analyzed 29 previous studies to find a link between dairy and disease. They found foods containing milk had a 'neutral' impact on human health. Even full-fat cheese, milk and yoghurt do not increase the danger, the meta-analysis of 29 studies found. The findings contradict warnings that dairy can be harmful because of its high saturated fat content.

Eat your butter, it’s good for you!

According to a new editorial in the British Journal of Sports Medicine, the belief that saturated fat in foods such as butter, cheese and meat clogs arteries is “just plain wrong.” Instead, the focus should be on eating a Mediterranean-style diet, taking a brisk walk daily and minimizing stress.

The editorial identifies coronary heart disease as a “chronic inflammatory condition.” Malhotra explains that eating too much white bread, pasta, and potatoes — carbohydrates, essentially — raises blood glucose rapidly, and the body responds by creating too much insulin.When the body is constantly flooded with insulin, it can’t do its job of getting glucose into cells for energy. This initiates an inflammatory response, which in turn begins to harden your arteries.
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Not since doctors touted smoking as a digestive aid has there been such a medically sanctioned public health debacle. The rates of obesity, type 2 diabetes, and heart disease have skyrocketed since low-fat diets were universally recommended, while those suffering from diet-induced ill health have been blamed and shamed. It’s about time doctors spoke up and put the blame where it belongs, on processed and refined “low-fat” foods.
Posted by Jill Fallon at May 9, 2017 5:27 PM | Permalink