ZafiraHUN

Which means next day you'll be more tired

Alcohol is a sedative, which is sorta like knocking someone out via like fainting, rather then sleeping

Caffeine + bright light (105 min) isn't significantly more effective than bright light alone (85 mins) or caffeine alone (85 mins)

I did not read the post CW

Ptsd is more likely if you don't have as much social contact + can't express grief. Potentially 'cant express grief publicly'. If entire community subject to tragedy less rates of ptsd - even allievates ptsd symptoms in long term ptsd victims.

During war/after 911, suicide/depression/homicide rates drop. Potentially from being involved in a grand cause. Causes people to speak to each other. Our brains enjoy helping each other.

Much higher rates of mental health problems in human history. These increase with urbanization. Countries might focus too much on tearing themselves apart by every possible ethnic line etc.

Soldiers in ancient times got ptsd at lower rates, potentially due to; death/blood being more common, at camp they were usually safe whereas nowadays - never safe (drones, long range missiles, ied) so modern soldiers always always hypervigilant, killing was considered glorious, crying was allowed amongst men

concussions increase the odds of ptsd developing

35 days of uninterrupted combat, 98% have psychiatric disturbances.

Short term hypervigilance is probably advantageous - easily awaken, worried about event.

A tip from a YouTube video

Research suggests that not just sleep position, but sleep itself, can play a role in musculoskeletal pain, including neck and shoulder pain. In one study, researchers compared musculoskeletal pain in 4,140 healthy men and women with and without sleeping problems. Sleeping problems included difficulty falling asleep, trouble staying asleep, waking early in the mornings, and non-restorative sleep. They found that people who reported moderate to severe problems in at least three of these four categories were significantly more likely to develop chronic musculoskeletal pain after one year than those who reported little or no problem with sleep. One possible explanation is that sleep disturbances disrupt the muscle relaxation and healing that normally occur during sleep. Additionally, it is well established that pain can disrupt sleep, contributing to a vicious cycle of pain disrupting sleep, and sleep problems contributing to pain.