Articles on Sleep

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Research shows that sleep deprivation impairs communication between brain regions and brain blood flow, damages brain wiring and makes a young brain look like an aged brain. (Shutterstock)

Sleep deprivation benefited our ancestors, yet harms us now — but staying fit may help us cope

Ancient humans chose to sleep less, which had evolutionary benefits. For modern humans, sleeping less is futile and detrimental, but fitness may be a powerful ally in today’s epidemic of sleep loss.
Moms get about 25 minutes less sleep each weeknight when their kids’ school is in session. Jose Luis Pelaez Inc/DigitalVision Collection/Getty Images

Less sleep, less exercise and less relaxation – here’s the data on just how much busier moms are during the school year

Parents spend more time actively engaged with their kids – such as helping with homework or reading together – during the school year than during summer. But the difference is almost three times greater for moms than for dads.
Some people don’t have the ability to create mental images, a condition called aphantasia, but can still experience visual imagery in their dreams. (Shutterstock)

We’re just starting to learn more about aphantasia, the inability to picture things with the mind’s eye

People with aphantasia are unable to deliberately bring to mind mental images. Understanding the mechanisms of aphantasia reveals that different types of cognition exist.

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