life span

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Anti-Anxiety Drug Makes Fish Live Longer

Human tranquilizer makes perch aggressive but also seems to increase longevity

(Newser) - On the one hand, fish exposed to the tranquilizer oxazepam when it seeps into their waters kind of become jerks, reports a study in Nature . On the other hand, this same drug, a benzodiazepine used to treat anxiety and insomnia in human adults, apparently helps them live longer, reports Nature... More »

A Secret to Women's Longer Life Revealed

New study finds that women's immune systems decline more slowly

(Newser) - Why do women typically walk the Earth longer than men? According to a new Japanese study, the immune system is to thank—or blame, depending on your gender. It found that men's immune systems weaken more quickly than women's, leaving males more susceptible to disease, the BBC reports.... More »

Rich? You'll Probably Live Longer, Too

Studies show link between life expectancy, income gap

(Newser) - Research shows a disturbing trend in the US: As life expectancy goes up, the life expectancy gap between rich and poor is widening. While US life expectancy hit 78.5 years in 2009, most gains went to those whose income is the highest. To illustrate the trend, the Washington Post... More »

Life Expectancy Declining for Many US Women

It's just the latest study to find disturbing trend

(Newser) - A new study offers more compelling evidence that life expectancy for some US women is actually falling, a disturbing trend that experts can't explain. The latest research found that women age 75 and younger are dying at higher rates than previous years in nearly half of the nation's... More »

Pessimistic? You Might Live Longer

Study cites dangers of being 'overly optimistic'

(Newser) - Here's a bit of a surprise: Pessimistic people actually appear to live longer than their sunnier peers, a study suggests. Researchers reviewed 40,000 subjects over a 10-year period and found that "being overly optimistic" was linked to "a greater risk of disability and death within the... More »

Madagascar Chameleon Has Shortest Life on 4 Legs

Furcifer labordi dies about a year after it's conceived—and 16-20 weeks out of shell

(Newser) - A small chameleon native to Madagascar looks to own the world record for shortest life span for a creature with four legs and a backbone, the New York Times reports. The Furcifer labordi dies about a year after conception, with just 16-20 weeks on earth after it leaves its shell.... More »

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