In 2026, many young people report fatigue, low energy, stress, and mood changes despite normal blood tests. Growing evidence shows that excessive screen use especially at night disrupts sleep and hormonal balance, making screen habits a significant health concern.
Screens give off blue light, which tells the brain that it is still daytime. Normally, the body releases a sleep hormone called melatonin at night, which helps you fall asleep, stay asleep, and get deep, restful sleep. When you use phones or other screens late at night, melatonin levels drop, so you take longer to fall asleep, your sleep keeps breaking, and it feels light and unrefreshing. Over time, this poor sleep affects your hormones. Night-time screen use keeps the brain in alert mode and increases cortisol, the stress hormone, which can cause anxiety, overthinking, belly fat, low energy, and sugar problems. Poor sleep also lowers testosterone in men, leading to reduced energy, strength, and slower recovery, even in young and fit individuals. In women, disturbed sleep affects the body clock and female hormones, which may result in irregular periods, worse PMS symptoms, and long-term hormonal imbalance.
Protecting sleep is a simple yet powerful step toward long-term health.
Along with night time screen time, notifications with red signals, and sound also increase cortisol level, giving person a mini shock every time it rings.
Limiting screen time to a certain part of the day and being stringent about avoiding screen use right before going to sleep can improve the quality of sleep, letting the body’s circadian rhythm balance the overall health.
Yes , indirectly.
over a period of time can disturb sleep rhythms and may affect growth and brain development.
And according to pediatric guidelines( American Academy of Pediatrics) they strongly recommend avoiding screens for babies and keeping their sleep environment screen-free.
Absolutely true. Along with sleep disruption, phones do emit low-level radiation, especially when kept very close during sleep.
For better rest, I’d recommend keeping the phone away from you at night or ideally out of the bed altogether. This allows the brain to relax naturally, supports healthy serotonin release, and lets sleep do its job.
Very relevant and well explained. Screen habits are an overlooked cause of fatigue and hormonal imbalance in young people. Protecting sleep truly is one of the simplest and most effective steps for long-term health.
Sleep is essential for mental health and day to day tasks requiring focus. Also delayed sleep may lead to snacking and weight gain and related complications. Insulin, growth hormone and thyroid hormones are also affected. Can also cause mood disorders like anxiety and irritability. Best is to use the night mode and keep your phones aside at least an hour before your time to sleep.
