Two scientists have won the Nobel Prize in physiology or medicine for their discovery of microRNA, tiny bits of genetic material that serve as on and off switches inside cells that help control what the cells do and when they do it. If scientists can better understand how they work and how to manipulate them, it could lead to powerful treatments for diseases like cancer. A panel that awarded the prize in Stockholm said Monday the work by Americans Victor Ambros and Gary Ruvkun is "proving to be fundamentally important for how organisms develop and function." Their discovery ultimately "revealed a new dimension to gene regulation, essential for all complex life forms," the panel said.

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Amid viral videos and news stories about preteens dubbed “Sephora kids” raiding makeup stores to stock up on aesthetic skin care, Assemblymemb…

The global market has exploded for drinks that promise to do more than just taste good. So much so that grocery store beverage aisles are starting to look more like pharmacies. There are sodas made with mushrooms that supposedly improve mental clarity and juices packed with bacteria that claim to enhance digestive health. Water infused with collagen carries the promise of better skin, and energy drinks offer to help burn body fat. Welcome to the frenzy of functional beverages. What started in the late 1980s with caffeine- and vitamin-laced energy drinks like Red Bull has grown into a multibillion-dollar industry. Hundreds of brands are vying for consumers' attention with increasingly exotic ingredients and wellness-focused marketing.

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Losing an hour of sleep as daylight saving time kicks in can do more than leave you tired and cranky the next day — it also could harm your health. Darker mornings and more evening sun together knock out of whack a body clock that regulates when we're drowsy and when we're alert. Studies even show an uptick in heart attacks and strokes the first few days after the spring time change. Getting more morning light can help reset your circadian rhythm and get sleep that's vital for good health.

The first over-the-counter birth control pill will be available in U.S. stores later this month. Manufacturer Perrigo said Monday that it has begun shipping the medication, called Opill, to major retailers and pharmacies. A one-month supply will cost about $20 and a three-month supply will cost around $50. The Food and Drug Administration last July said the once-a-day pill could be sold without a prescription. It will also be available online. The pill is a hormone-based contraceptive, similar to drugs used by millions of U.S. women for decades. Birth control pills are available without a prescription across much of South America, Asia and Africa.

Holiday meals may be changing for millions of Americans struggling with obesity and taking a new generation of weight-loss drugs. Experts and consumers say the drugs are shifting dining habits and social norms around food-centric holidays like Thanksgiving, Passover and Christmas. Some users welcome greater control over what they eat during the holidays. Others may lose their appetites entirely, doctors say, risking what one researcher called "the reward of having a beautiful meal."