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Well-timed exercise might improve learning

Aerobic exercise four hours after a memorization task, but not exercise right afterwards, was linked to improved recall in a series of Dutch experiments.

That little sibling may be good for your health

That pesky kid brother or sister who broke your stuff and got you in trouble all the time may have actually done you a favor. A U.S. study suggests that younger siblings might be really good for your health.

Scientists find ‘good’ cholesterol can be bad

LONDON — So-called “good” cholesterol may actually increase heart attack risks in some people, researchers said on Thursday, a discovery that casts fresh doubt on drugs designed to raise it.

Reading from a tablet before bed may affect sleep quality

People who read from an iPad for 30 minutes before going to sleep felt less sleepy and had different electrical activity in the brain during sleep than those who read from a physical book, a recent study found.

Patients with lens implants may develop cataracts

Many patients who get lens implant surgery to correct vision problems may develop cataracts or elevated pressure around the eyes within 10 years after the procedures, a Swiss study suggests.

Targeting frailty in pre-lung transplant patients might improve survival rates, patient outcomes

ROCHESTER, Minn. — Frailty can affect people of all ages and demographics. Defined simply as “an increased vulnerability to adverse health outcomes,” frailty can affect a patient’s chances of surviving a surgical procedure or needing a nursing home. A new study from physicians at Mayo Clinic in Rochester, Minn., published recently in the Journal of Heart and Lung Transplantation, is among the first to show a definitive connection between frailty and survival after a lung transplant procedure.

Get some sleep: A weight-loss tip to take seriously

We realize the Internet is flooded with weight-loss tips. And there’s no way you could possibly adhere to all of them, especially considering more than a few contradict each other. Often the more out-there advice monopolizes the conversation (think infrared saunas, cryotherapy, and intermittent fasting), but health and wellness expert Dr. Frank Lipman reminds us that sometimes the simplest tip can have the biggest effect.

Vomiting disease’ on the rise in California

It’s a disease humorist Stephen Colbert once poked fun at in this tweet: “Remember, if you’re in public and have the winter vomiting bug, be polite and vomit into your elbow.”

Opioid abuse propels U.S. deaths from overdose

ATLANTA — U.S. deaths from drug overdoses hit a record high in 2014, pro-pelled by abuse of prescription painkillers and heroin, the U.S. Centers for Disease Control and Prevention said on Friday.

3-D video games may be good for memory

Playing three-dimensional video games just 30 minutes a day might mean new memories are less likely to fade away, a small U.S. study suggests.

New screening guidelines for checkups

The American Academy of Pediatrics recently released its updated list of recommended health care screenings for children, which includes checking for depression, high cholesterol and HIV. Mayo Clinic Children’s Center pediatrician Dr. Angela Mattke says the revised recommendations are a “firm affirmative to pediatricians that doing these screenings or testing will be beneficial to the child’s health.”

Hookah, e-cigarettes popular with teens

Almost 10 percent of 11th and 12th graders are using e-cigarettes, and other alternative tobacco products are increasingly popular, according to a new study.