Science of Sleep
We all understand the importance of sleep in maintaining well-being and overall health. If you ever had (chances are you did) a couple of nights of little sleep, you remember the feeling of anxiety and irritableness.
Humans spend a third of their life sleeping for fundamental and important reasons. Science has learned a few things about sleep but most of it is still a mystery. We understand there are several different phases of sleep, from REM to slow-wave and we understand our circadian clock which regulates daily sleep. But why is sleep so profoundly important? Could you develop chronic diseases from sleep disruptions? From weight gain and depression to Alzheimer’s disease, there are a few scientific researchers proving that lack of sleep can lead to these chronic diseases. Getting eight hours of sleep is crucial for your health. However, too much sleep is just as bad for your brain as is too little sleep. In 2018, the results of the largest study were published, and they revealed that more sleep than the recommended eight hours is not necessarily better. The study suggests that between seven and eight hours of sleep is optimal for a healthy adult. A study suggests that more than eight hours of sleep may lead to cognitive impairment than less than seven hours of sleep. Unless you are a teenager, sleeping for ten hours may be just as unhealthy as sleeping five hours.
Association between disrupted sleep and age-related cognitive decline was proved by a few scientific kinds of research. Bad sleep can contribute to the onset of Alzheimer’s disease. Two toxic proteins associated with neurodegenerative disease have been found to be directly connected by sleep deprivation. The slow-wave sleep is the phase most effective for clearing waste from the brain.
According to Science, it’s Ok to be Alone
The US censuses bureau reports that 45.20% of Americans who are over the age of 18 are living alone, while 63.00% have never been married. Millennials are getting married later in life and they are staying together longer. An extended period of time spent alone will allow us to sufficiently explore our character and personality. Getting to know yourself is an important part of functional relationships. The better we know ourselves, the better we know what our emotional needs are.
Randi Gunther Ph.D. spoke about rushing into relationships and the price it brings when it comes to our personal integrity and value.
“Entering a new relationship with clarity and self-confidence, you will automatically be able to discern early-on whether a potential partner is worth your investment.”
This doesn’t mean that being alone is just preparation for relationship and marriage.
According to a study, people who are single are 21% less likely to have credit card debt. Also, they are more likely to be active and to go to the gym when we compared them with their married counterparts. Also, they are more likely to sleep more than married people. There are so many reasons to be alone.
Humans are Wiping Out Chimpanzees’ Culture
From hunting to logging, to epidemics among chimpanzees, we are wiping out chimpanzees in West and Central Africa. A new study shows that human activity has a great impact on the chimp population. We are not only talking about the chimpanzees’ population but their culture, habits, and behaviors that they transfer to younger generations.
Chimps perform different behaviors from using tools to cracking nuts and collecting termites. These behaviors are passed from one generation to the next just like in human culture. The listed behaviors of chimpanzees are crucial for their survival. However, chimps living near people have a few of listed behaviors which are often not used or transferred to younger generations. According to the authors of the study, we need to protect these key behaviors.
Hjalmar Kühl, a primatologist at the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany said:
“A lot of conservation effort is focused on species diversity and genetic diversity, but we need to look at cultural diversity as well.”
Two decades ago, primatologist Carel van Schaik from the University of Zurich in Switzerland proposed that human impacts such as poaching, and habitat destruction could wipe out key behaviors in great apes. A catalog of chimps’ behaviors across 144 chimpanzee communities suggests that this hypothesis is right.