In addition to fueling aggression, testosterone can also make men more generous, study says

We may routinely invoke testosterone to dismiss boorish behavior. But in polite society, the new research suggests, higher levels of testosterone also drive men to do good things: to donate to charities, behave gallantly toward those in need, and share the proceeds of business deals generously with cooperating business partners.

Fact-checking the 1st presidential debate between Trump, Clinton

Hillary Clinton and Donald Trump kept fact-checkers busy throughout their first debate Monday night as they sparred over their policies and records on the economy, national security, the environment and their own personal pasts.

How small forests can help save the planet

Environmental groups argue that private forests, which make up more than half of the forestland in the U.S., represent a large, untapped resource for combating the effects of climate change.

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