(HealthDay News) -- If you're one of the 70 million Americans who enjoy boating, the U.S. Coast Guard offers these safety suggestions:

(HealthDay News) -- A possible side effect of chemotherapy is loss of appetite. But eating well is important to help your body stay strong during this time of physical and emotional stress.

MONDAY, April 11 (HealthDay News) -- Progressive resistance training helps older adults build muscle and increase their strength to function better in daily life, researchers say.

MONDAY, April 11 (HealthDay News) -- A new oral medication for the treatment of multiple sclerosis (MS) shows promise in slowing disease progression, limiting brain atrophy and reducing MS relapses, a recently completed two-year clinical trial demonstrates.

MONDAY, April 11 (HealthDay News) -- The tone of a woman's voice remains constant throughout her menstrual cycle, claims a study that challenges previous research suggesting the tone rises as ovulation approaches.

MONDAY, April 11 (HealthDay News) -- Sleep problems and fatigue are common among childhood cancer survivors and can impair their attention and memory, researchers say.

MONDAY, April 11 (HealthDay News) -- The wrist size of overweight or obese children and teens may reveal those at increased risk of developing cardiovascular disease, says a new study.

MONDAY, April 11 (HealthDay News) -- A vaccine that jumpstarts the immune system is showing promise in keeping a deadly type of cancerous brain tumor at bay.

MONDAY, April 11 (HealthDay News) -- Normal daily fluctuations in blood pressure aren't linked with the well-documented fact that people are more likely to suffer a heart attack or stroke in the morning, a new study shows.

SUNDAY, April 10 (HealthDay News) -- An "organic" label on foods is enough to make people believe the food items are healthier and tastier, new research suggests.

MONDAY, April 11 (HealthDay News) -- Young mothers tend to be heavier than their peers who don't have children, and they also consume more saturated fat, sugary beverages and total calories, a new study suggests.

SUNDAY, April 10 (HealthDay News) -- Obese patients taking a high dose of an investigational weight-loss pill called Qnexa lost an average of 22 pounds over a year, while also lowering their cholesterol and blood pressure numbers, a new study has found.

MONDAY, April 11 (HealthDay News) -- Long-term use of antibiotics to treat acne doesn't seem to spur bacteria into becoming resistant to the medications, a new study finds.

MONDAY, April 11 (HealthDay News) -- Researchers have come up with two new tests that seem better able to predict which patients with chronic kidney disease are more likely to progress to kidney failure and death.

MONDAY, April 11 (HealthDay News) -- When faced with a choice of treatments, primary care doctors often choose a different option than they would recommend to their patients, a new study finds.

MONDAY, April 11 (HealthDay News) -- A new study of middle-aged black women finds that almost 30 percent suffer from baldness and scarring in the center of their scalps, possibly because braids and weaves pull their hair too tight.

MONDAY, April 11 (HealthDay News) -- If you're typing on a computer while talking on the phone and enjoying a cappuccino, know that you may not be able to focus on so many things at once forever.

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

MONDAY, April 11 (HealthDay News) -- A drug commonly prescribed for Alzheimer's disease, memantine (Namenda), appears to be ineffective in treating the mild stage of the disease, a new study finds.

MONDAY, April 11 (HealthDay News) -- The first test to help diagnose people with symptoms of the mosquito-borne virus dengue fever has been approved by the U.S. Food and Drug Administration.

MONDAY, April 11 (HealthDay News) -- A special exhaust filter for diesel engines cuts emissions of heart-harmful microscopic particles by 98 percent, which could lead to fewer deaths from cardiovascular disease, a new study suggests.