(HealthDay News) -- Menopause -- the point at which a woman's menstrual cycle stops for good -- usually occurs when the ovaries stop producing the hormones estrogen and progesterone.

(HealthDay News) -- Life's problems often get in the way of your best intentions when it comes to exercise.

MONDAY, April 23 (HealthDay News) -- Cyberbullying is different than traditional bullying, and anti-bullying programs need to use specific measures to combat online aggression, a new Canadian study says.

MONDAY, April 23 (HealthDay News) -- The stress of caring for a wife with breast cancer can harm a man's health, and this effect can continue for years after her treatment ends, new research says.

MONDAY, April 23 (HealthDay News) -- It goes without saying that bites from venomous snakes can be painful and dangerous, but they can also be very expensive, an expert warns.

MONDAY, April 23 (HealthDay News) -- Hispanic people with lung cancer tend to live longer than white or black people with the disease, according to a new study.

MONDAY, April 23 (HealthDay News) -- The shingles vaccine is generally safe and well tolerated by patients, according to a new study.

MONDAY, April 23 (HealthDay News) -- Teen drivers and passengers are more likely to use seat belts if they're in states with primary-enforcement seat belt laws, often promoted as "click it or ticket" laws, a new study finds.

MONDAY, April 23 (HealthDay News) -- Studies that show a type of antidepressant eases autism symptoms are more likely to get published in medical journals than studies concluding the drugs don't improve common behaviors such as rocking and hand-flapping, new research says.

MONDAY, April 23 (HealthDay News) -- The experience of killing in war is strongly linked with suicidal thoughts, according to a study of U.S. veterans of the Vietnam War.

MONDAY, April 23 (HealthDay News) -- Dozens of medications are available to prevent debilitating migraine headaches, but most migraine sufferers don't use them, a new study finds.

SUNDAY, April 22 (HealthDay News) -- That "brain freeze" headache you experience when eating ice cream or other cold foods may be caused by a sudden change in brain blood flow, researchers report.

FRIDAY, April 20 (HealthDay News) -- The U.S. government is giving the go-ahead for publication of two controversial studies into the H5N1 avian (bird) flu virus, a top federal health official announced Friday.

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

MONDAY, April 23 (HealthDay News) -- New evidence suggests that a type of overactive thyroid condition appears to boost the risk of heart problems, especially atrial fibrillation (a form of irregular heartbeat) and premature death.

MONDAY, April 23 (HealthDay News) -- Elderly women noticing the first signs of memory decline might ward off full-blown dementia by engaging in routine strength training, new research suggests.

MONDAY, April 23 (HealthDay News) -- Prolonged exposure to low levels of the heavy metal cadmium may fuel the growth of some breast cancer cells and encourage them to spread, preliminary research indicates.

MONDAY, April 23 (HealthDay News) -- Deaths from measles fell 74 percent worldwide between 2000 and 2010, but progress is still short of the World Health Organization's target, health officials reported Monday.