They represent hard work and effort. Often, they may indicate a loss of sensitivity. Perhaps, it is time to pay more attention to your emotional life.
If you want to go on a diet, you might want to have enough of sleep. The researches show that people who are on a diet and rests well, relatively lost more fat, of about 56% than those who deprived themselves to sleep. When you sleep well, your metabolism also works well, certain hormones will go up in your blood and drive your appetite.
Improving memory can be done in a number of ways, and one of those is by having a good night's sleep. During sleep, your mind is still busy and going through the process of consolidation, where it strengthen your memories as well as the "practice" skills, which you have learned while you're awake. According to the associate professor at NYU Langone Medical Center, Dr. Rapoport says that something happens while we are all sleeping, and it helps us learn things better. Thus, if you're trying something new, you can perform it better right after you sleep.