Disrupted circadian rhythm and subsequent sleep pattern may cause obesity, according to a 2007 study published in Obesity Reviews.
The circadian rhythms of your body regulate sleep and wakefulness, as mentioned previously. However, what this means on a cellular level is that it also regulates the periods of activity and inactivity of your cells.
When your cells are active, they engage increasingly in transporting nutrients and hormones, as well as fat cells and triglycerides.
A disturbed and unpredictable sleep/wake pattern alters the body’s metabolic process significantly, and may trigger accumulation of fat cells. This causes obesity.
Sleeplessness can interfere with the body’s ability to manage excess glucose through insulin and keep the blood sugar levels in check.
Sleep deprivation at night can hamper glucose utilization and increase insulin levels, causing diabetes.
People who slept less than 5 hours each night reported a 37 percent increased risk of developing diabetes over 10 years, according to a 2003 study published in Diabetes Care.
People who reported disturbed and broken sleep throughout the night, as well as those who slept 5 hours or less, were found to develop a significantly greater risk of Type 2 diabetes over a course of 12 years, according to a 2005 study published in Diabetes Care.
Shorter duration of nighttime sleep is associated with an elevated risk of developing hypertension, according to a 2013 study published in Sleep Medicine.
Poor sleep or sleep deprivation can strain your heart and increase pressure on the blood flow through your arteries over a prolonged period, causing your body to retain high levels of sodium thereby increasing hypertension.
Out of 4,810 middle-aged people, those who slept less than 5 hours reported a 60 percent increased risk of hypertension during an 8- to 10-year follow-up period, according to a 2006 study published in Hypertension.
Moreover, non-restive sleep or complete lack of sleep also activates the body’s sympathetic nervous system. The sympathetic nervous system is the body’s way of responding to strain and increased physical activity. In other words, it is the body’s state of emergency.
Lack of sleep triggered the body’s sympathetic nervous system and contributed to an increased risk of hypertension in subjects, according to a 2006 study published in Hypertension.