A new study that's challenging the popular idea that we should drink eight glasses of water a day for health purposes shows that a 'swallowing inhibition' is activated by the brain after excess liquid is consumed. This inhibition mechanism helps maintain tightly calibrated volumes of water in the body.

The lead scientist has pointed out that if we just do what our body demands us to, we'll probably get it right. In other words, it is the best practice to just drink according to thirst rather than an elaborate schedule.

Building on a previous study, the researchers asked participants to rate the amount of effort required to swallow water under two conditions; following exercise when they were thirsty and later after they were persuaded to drin ...

Many great minds have sought proof for God's existence. For French philosopher and scientist, Blaise Pascal, God's existence was beside the point. He conceded that nobody knows whether or not God exists, but because it's in our own best interests to behave as if He does, that's the most rational choice.

This is what's known as Pascal's Wager, since it argues that it's your best bet to believe in God. (Pascal wrote of the Christian God, but this same argument could apply to any god). If God doesn't exist and you behave as if he does, you haven't lost much - just some sleep on Sunday and a few opportunities for sin. But if God does exist, you have everything to lose or gain: act as if he does exist and you spend eternity in heaven; act as if h ...

The hairy frogfish (Antennarius striatus) is a marine fish with spines resembling strands of hair - and it can change color. This small fish grows up to 22 cm (8.7 in) long, and has a rounded, extensible body. Its large mouth is forwardly extensible, allowing it to swallow prey as large as itself! The coloring of its body is extremely variable because individual fish tend to match their living environments.

Frogfishes have the capacity to change coloration and pigment pattern, taking only a few weeks to adapt. The dominant coloration varies from yellow to brownish-orange, passing through a range of shades, but it can also be green, gray, brown, almost white, or even completely black without any pattern. Body and fins can be marked with roug ...