Men who remain single for a long time cannot hide these three changes

People who have been single for a long time, even the mirror begins to look down on them - although this statement carries a hint of humor, the changes in their bodies do not lie. When living alone becomes a habit, everything from metabolic rate to emotional switches is quietly reorganizing, and some signals even light up earlier than the physical examination report.

1. Hormonal Levels Like a Roller Coaster

1. Subtle Balance of Testosterone

Three Months Without Parents Men who have close contact may experience a fluctuation of about 15% in testosterone concentration in their bodies. The secretion of this hormone, which dominates muscle synthesis and energy levels, is correlated with the frequency of skin contact. Laboratory data shows that regular limb contact can stimulate the hypothalamus to release more gonadotropins.

2. Circadian Rhythm of Cortisol

Individuals living alone generally have a higher peak of cortisol in the morning. This stress hormone should slowly decrease in the morning, but lacks partner stress reducing interaction and is easily maintained at a high level. Long term exposure may affect blood sugar metabolism, which is why some people find it increasingly difficult to control their weight as they remain single.

2. The brain begins to "slack off"

1. The activity of mirror neurons decreases [SEP]. The brain regions that process emotional signals are in and out of use, and long-term lack of emotional communication can lead to weakened empathy. FMRI scans show that the activation level of the prefrontal cortex in single men over five years old is significantly lower than that in married individuals when watching emotional videos.

2. Changes in dopamine threshold

Solving entertainment needs alone can make the reward system more picky and reduce the pleasure brought by simple socializing. Just as long-term heavy flavored diets can dull taste buds, excessive reliance on virtual stimuli may make real-life interactions appear dull.

3. The body sends out protest signals

1. Fragmentation of sleep structure

The average proportion of deep sleep in double bedridden individuals decreases by 12%, and the number of nighttime awakenings increases. The human body produces a sense of security related delta wave when accompanied, which is a benefit that cannot be obtained by sleeping alone.

2. Increased pain sensitivity

Loneliness can reduce the secretion level of endorphins. When the concentration of this natural analgesic substance is insufficient, people's tolerance to muscle soreness and headaches will decrease. A study has found that the proportion of long-term single individuals who complain of pain during medical treatment is 37% higher. Don't rush to attribute these issues to age, they are more like feedback on lifestyle. Maintaining group sports three times a week, keeping a pet that requires interaction, and even regularly scheduling high fives and hugs with friends can reactivate those dormant body codes. After all, humans are social creatures from an evolutionary perspective, so it is necessary to occasionally give their bodies a "social subsidy".