Lack of sleep can be hazardous to your health

Lack of sleep leads to early death, study shows - Healthzone.ca
“Consistently sleeping six to eight hours per night may be optimal for
health,”

How hot would the Earth have to get before it would be unlivable?

How Hot Would The Earth Have To Get Before It Would Be Unlivable? - Posthumanity - io9
If global temperatures rise just 21 degrees Fahrenheit, half of humanity
will be cooked. A recent study shows that the planet doesn't have to
warm up very much before it becomes unlivable. And the death blow comes
from humidity.
...

Listening to prayer halts brain activity

Study Shows that Listening to Prayer Halts Brain Activity - Science - io9
Excerpts:
A team of Danish researchers have found that when listening to a
well-spoken person who claims to have divine healing powers, the regions
of the brain responsible for scepticism and vigilance become less
active.
...
Only in the devout volunteers did the brain activity monitored by the
researchers change in response to the prayers. Parts of the prefrontal
and anterior cingulate cortices, which play key roles in vigilance and
scepticism when judging the truth and importance of what people say,
were deactivated when the subjects listened to a supposed healer.
...