Sleep Fact #11: Good Sleep Keeps Hunger Urges in Check
Since sleep regulates hormones, it makes sense that it can also have a positive (or negative) impact on your eating habits. Hormones leptin and ghrelin — which play a role in hunger and appetite — can be unbalanced due to sleep deprivation and causes a change in appetite. If you sleep for less than four hours per night, your ghrelin levels increase and leptin levels go down, making you more prone to increased feelings of hunger.
Sleep Fact #12: Less Sleep Logged Means Less Effective Shots
Whether you’re looking to get a flu shot or a COVID vaccine, it’s important to know that leading up to the shot day, you’ll need a good amount of sleep. A study published in the journal Sleep found that vaccines are less effective if you don’t get enough sleep. Researchers found the participants who slept fewer than six hours on average per night were far less likely to have antibody responses to the vaccine. That also meant they were 11.5 times more likely to be unprotected by the vaccine than people who slept an average of seven-plus hours.