Harvard Health Blog

Many women think an occasional drink during pregnancy poses no harm, but a recent report suggests that no amount of alcohol is safe for the developing fetus. Alcohol affects the development of many organs, most notably the brain. While fetal alcohol syndrome, the most severe form of alcohol-induced damage, is unlikely to result from an occasional drink, researchers are finding that smaller amounts of alcohol can still have a negative effect. For that reason, no alcohol at all is safest when you’re pregnant or plan to conceive. If you’d like help cutting back on alcohol, don’t be embarrassed to talk with your doctor about it—she or he can help.

If you’re the parent of a teenager, how much do you know about the online life of your child? Probably not as much as you think you do. A recent study examined the social media lives of eighth graders from across the country. Results revealed unexpected habits, for example, kids spent more time watching and reading what others did online rather than engaging in social media. What’s more, many parents underestimate the negative emotions and problematic behavior teenagers experience as a result of social media and life online.

Depression is fairly common among people suffering with rheumatoid arthritis (RA). Recent research suggests that depression may worsen RA symptoms and even make medications less effective. To date, the studies that indicate a connection between the severity of RA symptoms and depression have not been conclusive, so more research is needed. In the meantime, if you have RA and notice signs of depression, be sure to talk with your doctor.

“Last time I got the flu shot, it actually made me sick!” “My kids are perfectly healthy. They’ll be fine.” You’ve probably heard a version of these two before. These flu shot myths are so persistent that they prevent countless numbers of people from getting vaccinated each year. We’ve debunked these claims here to help you make your flu shot decision based on facts — not myths.

October 8, 2015 is National Depression Screening Day, which is the embodiment of Dr. Douglas Jacobs’s belief that screening for mental disorders should be no different than screening for other physical illnesses. If you think that you may be suffering from depression, take the first step and find out. Treatment can improve your mood, help you feel more connected, and feel more like yourself again.

Americans are sleeping less and weighing more. Science tells us this is no coincidence. Inadequate sleep can contribute to weight gain in several ways, including altering levels of the hormones that control appetite and fullness and setting off a chain reaction of poor habits that can increase the risk of weight gain and obesity. Sleep is proving to be as important to health as good nutrition and regular exercise.

The mental health benefits of mindfulness meditation include greater engagement in your daily activities and a more positive outlook — which can in turn improve your concentration and sense of well-being. But can mindfulness practice really help employees’ mental health? A recent study says yes. Workers participating in mindfulness training found they experienced less stress, anxiety, and depression; improved sleep; fewer aches and pains; and fewer problems getting along with others.

A study examining the effects of low-nicotine cigarettes on smoking behavior yielded surprising results. The study volunteers who smoked the low-nicotine cigarettes actually smoked less and had fewer cigarette cravings than those who smoked cigarettes with a higher level of nicotine. Although more research is needed before we can draw any conclusions, it’s possible that very-low-nicotine cigarettes might be a way to mitigate the health dangers of smoking for people determined not to quit.

The very thought of losing a baby to sudden infant death syndrome (SIDS) is terrifying. Safer sleeping practices for infants have greatly reduced the number of babies lost to SIDS, but many parents are unclear on the reasons behind these recommendations and therefore often don’t follow them. The safest way to put your baby to bed is: on the back; in a crib, minus blankets, bumpers, and stuffed animals; and with a pacifier. Another critical factor is maintaining a smoke-free home and family.

Urinary tract infections (UTIs) occur in women of all ages. Physical and hormonal changes can leave women at midlife particularly vulnerable. No woman should have to put up with the inconvenience and discomfort of recurrent UTIs. Self-help measures can be effective, but if they don’t do the trick, see your doctor. He or she can identify and treat any underlying problems and recommend other strategies to keep UTIs at bay.

One of the most common treatments for unexplained infertility is ovulation induction, in which a woman takes drugs that will increase the number of eggs the ovary releases in the hope that at least one will result in a pregnancy. But when too many eggs are available for fertilization, the rates of high-risk multiple pregnancies go up. A recent study compared three drugs used for ovulation induction and found that the one more likely to result in a live birth was also more likely to result in a multiple pregnancy (twins, triplets, or more). The options for treating unexplained infertility remain less than ideal, but careful choices mean that the pregnancies that do result will be safer for moms and babies.

Tai chi has become popular in the United States in recent years, thanks in part to growing evidence for its many health benefits. This ancient Chinese exercise not only improves balance and flexibility, it may prevent falls, ease pain, and even help your heart. A recent analysis of 33 studies of tai chi suggests that doing tai chi can help older adults with common, long-term health conditions move about more easily and enhance their quality of life. The quality of life improvements may stem from the meditative, mind-calming aspects of tai chi.

Treatment decisions are complicated for men with low-risk prostate cancer that grows slowly. These cancers may never become deadly during a man’s expected lifespan. And there is no conclusive evidence showing that treatment in these cases extends survival. So cancer specialists have been leaning toward monitoring low-risk prostate cancer carefully and starting treatment only when it begins to spread. This approach was once used only in academic cancer centers, but new research suggests that this strategy is becoming more common in urology practices throughout the United States and other countries as well.

Treatment decisions are complicated for men with low-risk prostate cancer that grows slowly. These cancers may never become deadly during a man’s expected lifespan. And there is no conclusive evidence showing that treatment in these cases extends survival. So cancer specialists have been leaning toward monitoring low-risk prostate cancer carefully and starting treatment only when it begins to spread. This approach was once used only in academic cancer centers, but new research suggests that this strategy is becoming more common in urology practices throughout the United States and other countries as well.