A study published in The Journal of Health Data Science found that not having a set bedtime is more dangerous for health than sleeping too much or too little. The study involved nearly ninety thousand adults. They had their sleep habits assessed by wearing fitness trackers and then tracking their health for more than seven years.
According to the results, if there is no time or schedule for sleep or consistency, it increases the risk of suffering from 172 diseases. For example, if a person sleeps at different times for 3 nights a week, the risk of physical weakness increases by 3 times. Similarly, the chances of Parkinson's disease increase by 37 percent, type 2 diabetes by 36 percent and kidney failure by 22 percent.
According to researchers, the risk of developing 192 diseases can be reduced by 20 percent by going to bed at the same time every night. The study also found that not having a sleep schedule increases the amount of white blood cells and other proteins, which can lead to chronic inflammation. The researchers admitted that the study is somewhat limited, as it only tested sleep data for one week, and more research is needed to confirm the results.