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Thursday
Oct232014

Having Baby “Late” in Life May Signal Longevity

Here’s some good news for women who have had babies after the age of 33: odds are they’ll live longer than women whose last child was born before they reached 30. The age at last childbirth can indicate the rate of biological aging, according to a study of families with members who lived exceptionally long lives. “The natural ability to have a child at an older age likely indicates that a woman’s reproductive system is aging slowly, and therefore so is the rest of her body,” researcher Thomas Perls, M.D., M.P.H. explained in a press release. The genetic variants that allow women to have babies naturally after age 33 might also be responsible for exceptionally long life spans, the study suggested. The findings came from an analysis of data from the Long Life Family Study (LLFS)—a biopsychosocial and genetic study of 551 families with multiple members who attained exceptionally old ages. The researchers determined the ages at which 462 women had their last child, and correlated that age with their longevity. They found that women who had their last child after the age of 33 years had twice the odds of living to 95 years or older compared with women who had their last child by age 29. Earlier data from this study showed that women who gave birth naturally after age 40 were four times more likely to live to 100 than women who had their last child earlier in life.

Sources:
Thomas T. Perls et al, “Extended maternal age at birth of last child and women's longevity in the Long Life Family Study.” Menopause, The Journal of the North American Menopause Society, June 23, 2014

Wednesday
Oct222014

Nutmeg - Spices in the Kitchen (Video)

Dr. Weil discusses the spice nutmeg and its natural health benefits. The egg-shaped nutmeg is the seed of the nutmeg tree, a tree native to Indonesia. Traditionally, nutmeg has been used orally for digestive issues such as flatulence, nausea and diarrhea. Topically, nutmeg has been use to treat mouth sores and toothache. Ground nutmeg is often used in baked goods due to its pungent and sweet taste.

Want new videos from Dr. Weil? Subscribe to his YouTube channel for weekly videos!

Tuesday
Oct212014

Warning: Sunbathing May Be Addictive

While you were basking on the beach, researchers have been trying to figure out why it is so hard to convince people to break the skin cancer-causing sunbathing habit. One theory: ultraviolet (UV) light can be addictive. Some studies have found that giving an opiod blocker to frequent tanners produced withdrawal-like symptoms, results that imply, but don't necessarily prove, that opiod pathways and reward centers in the brain are involved in their tanning activities. The latest evidence in support of the UV addiction theory comes from a study with mice at Massachusetts General Hospital. Researchers there exposed a group of lab mice to a daily dose of UV light equivalent to the exposure of fair-skinned humans to 20 to 30 minutes of midday Florida sun. The dose was calibrated to tan, but not burn, the shaved backs of the mice. Within a week of daily exposure, feel-good beta-endorphin levels in the mice’s blood increased significantly, and didn’t drop until the UV exposure ended. When treated with a drug that blocked the opiod effect, the critters went into mouse withdrawal, complete with shaking and teeth chattering.

Sources:
David E Fisher, et al, ”Skin β-Endorphin Mediates Addiction to UV Light,” Cell, doi.org/10.1016/j.cell.2014.04.032

Monday
Oct202014

Surprising Health Risks of a TV Habit

Most of us recognize that spending too much time watching television isn’t healthy, but two new investigations have shown that excessive hours in front of the tube can double the risk of premature death or dramatically increase the risk of colon or endometrial cancer. The link to the two types of cancers comes from a German review of 43 studies concluding that being sedentary was associated with a 24 percent increased risk of colon cancer and a 32 percent higher risk of endometrial (uterine) cancer. To make matters worse, the researchers calculated that for each two-hour increase in daily time spent simply sitting, the colon cancer risk rises by eight percent and the endometrial cancer risk by 10 percent. They also found that when the sitting was done in front of the television screen, colon cancer risk increased by 54 percent and the endometrial cancer risk by 66 percent. These risks appeared to be applicable to all of the four million people whose data was included in the 43 studies reviewed, including those who were physically active. More bad news came from researchers in Spain who found that watching three or more hours of television daily can double the risk of premature death among relatively young people. The study focused on over 13,000 college graduates.

My take? A number of studies in recent years have found that too much sitting isn’t good for us. Research has shown that sitting at work (where it may be unavoidable), while driving, and at home are lifestyle habits linked to type 2 diabetes, as well as metabolic syndrome, which increase the risk of diabetes. In addition, heart disease, stroke, and the appearance of fat deposits linked to heart disease have been tied to prolonged sitting. Too much television has been associated with a long list of problems in kids including obesity, tobacco use, drug and alcohol use, poor achievement in school, and sexual and attention problems.

I'm not against spending a few leisure hours in front of the television. I often watch movies in the evenings, but enjoyable as that can be, it is no substitute for the relaxation techniques that I recommend as the best means of reducing stress, or for the short- and long-term benefits that regular physical activity provide. As we understand more about how moving effects our health, it has become apparent that even small amounts of activity add up in positive ways. Even if your job requires you to be relatively stationary, I encourage everyone to get up and move as much as possible.

Sources:
Daniela Schmid and Michael F. Leitzmann, “Television Viewing and Time Spent Sedentary in Relation to Cancer Risk: A Meta-analysis” Journal of the National Cancer Institute, doi: 10.1093/jnci/dju098

Miguel Martinez-Gonzalez,  “Watching too much TV may increase risk of early death in adults,” Journal of the American Heart Association, June 25, 2014 doi: 10.1161/JAHA.114.000864

Friday
Oct172014

Have You Had a Tonsillectomy? (Poll)

A recent Q&A discussed tonsil health and if it is necessary to remove the tonsils through a tonsillectomy: Time to Take Out the Tonsils? Check out the article and let us know if you have ever had your tonsils removed.

Thursday
Oct162014

Broccoli Tea to Fight Air Pollution

Undoubtedly, the best way to avoid the damage air pollution can cause to your health is to move to where the air is clean. The World Health Organization estimates that the chemicals in air pollution take seven million lives per year, worldwide. Fortunately, there may be a way to cancel out some of the unhealthy effects of pollution without leaving home. Researchers from Johns Hopkins and China’s Qidong Liver Cancer Institute tested the effects of a tea made with broccoli sprouts among 291 residents of Jiangsu Province, an area of China that which has some of the worst air pollution in the country. The study showed that a daily drink of a half cup of the tea – a combination of freeze-dried broccoli sprout powder, water and pineapple and lime juice – increased elimination of by-products of the cancer-causing toxin benzene by 61 percent, and boosted excretion of acrolein, a lung irritant, by 23 percent. Increased elimination of these substances began immediately after the participants began drinking the tea and continued at the same rate through the study. No such changes were measured in study participants who drank a similar tea that did not include the broccoli sprout extract. Broccoli sprouts contain sulforaphane, a compound that has been shown in animal studies to help lower risks of cancer and promote excretion of benzene. You can get sulforaphane in your diet by eating broccoli, but a more concentrated form would be needed to match the levels provided by the tea in the study.

Sources:
Thomas Kensler et al, “Rapid and Sustainable Detoxication of Airborne Pollutants by Broccoli Sprout Beverage: Results of a Randomized Clinical Trial in China,” Cancer Prevention Research, doi: 10.1158/1940-6207.CAPR-14-0103

Wednesday
Oct152014

Peppercorn - Spices in the Kitchen (Video)

Dr. Weil discusses peppercorn and the various forms pepper comes in - black, green, and white pepper. Peppercorn is the whole, partially ripened fruit (or unripe fruit in the case of green pepper) of the pepper plant, native to Asia. Black pepper has been used to calm digestive issues - heartburn, indigestion, gas - and aid in the absorption of turmeric.

Want new videos from Dr. Weil? Subscribe to his YouTube channel for weekly videos!

Tuesday
Oct142014

Can Skipping Breakfast Ruin Your Diet?

The latest word on this subject is “no.” The question of whether or not skipping breakfast is key to weight loss has been asked and answered in any number of studies and the answers have often been contradictory. The latest effort to determine whether or not eating breakfast has an impact on weight loss came from the University of Alabama, where researchers looked at the effect of eating or skipping breakfast on 309 healthy overweight and obese people ages 20 to 65. One group was asked to eat breakfast before 10 a.m. while those in another group were asked not to eat anything before 11 a.m. A third group, divided between people who habitually skipped breakfast and those who always ate it, was not given any instruction about whether or not to eat the morning meal. None of the participants was on a strict weight loss plan, but all were trying to lose weight independently. After 16 weeks, skipping or eating breakfast had no discernible effect on weight loss. Study leader Emily Dhurandhar, Ph.D., said future studies would be aimed at understanding “why eating or skipping breakfast did not influence weight loss, despite evidence that breakfast may influence appetite and metabolism.”

Sources:
Emily J. Dhurandhar et al, “The effectiveness of breakfast recommendations on weight loss: a randomized controlled trial,” American Journal of Clinical Nutrition,
doi: 10.3945/ ajcn.114.089573