A person who keeps dozing off in the day reaches for modafinil for the same reason a person who can’t sleep at night goes for sleeping pills. Given that it does its job of keeping you wide awake and improving cognitive function well, it’s no surprise some consider it as a ‘nootropic’ or smart drug—one of the most common to boot.

If you've ever spent a restless night flipping around in bed, you already know how weary, grumpy, and out of sorts you'll feel the next day. However, not getting the recommended 7 to 9 hours of sleep each night does more than make you sluggish and irritable. Sleep deprivation has long-term consequences. It depletes your mental capacities and jeopardizes your physical health. Sleep deprivation has been related to a variety of health issues, ranging from weight gain to a compromised immune system. Continue reading to learn more about the causes of sleep deprivation and how it affects various body processes and systems.

In a perfect world, you'd wake up each morning feeling refreshed and ready to tackle the day ahead. However, the world isn't perfect and waking up feeling amazing doesn't always happen. How often have you experienced mornings where your body doesn't feel right, or where you've noticed new-to-you aches and pains? 

There are many signs of depression, and different patterns in sleep can be one of them. However, analyzing sleep patterns as a sign of depression can be a bit confusing since symptoms are different from case to case. Still, most people who experience depression also have problems with sleep. Here's what to know about the link between sleep and depression: