Doctors warn that staying indoors for too long hurts bone health

Spending long days indoors harms bone health for people of all ages, including young adults in their 20s and 30s. Orthopaedic surgeon Dr Sumit Badhwar states that bones need sunlight, movement, and proper nutrition to stay healthy.

Vitamin D Loss

Staying inside blocks the skin from making vitamin D, which the body needs to absorb calcium from food. Dr Badhwar explains that glass windows block the UVB rays required for this process, meaning that sitting near a sunny window does not help. Pollution and high temperatures also keep people trapped inside.

Weak Bones

Lack of movement also harms the skeletal system because bones grow stronger when they carry weight through activities like walking or climbing stairs. Long hours of sitting remove this vital pressure. This lack of exercise poses a serious risk for people up to their late 20s or early 30s, when the body builds its peak bone mass. Poor bone mass built during these years raises the danger of osteoporosis and fractures later in life. Sitting for extended periods also weakens muscles around the spine and hips, leading to neck and back pain for desk workers. Other poor lifestyle habits like skipping meals, low protein intake, smoking, and heavy alcohol use make these bone problems even worse.

Context

Doctors advise people who spend most of their time indoors or feel ongoing aches to get their vitamin D and calcium levels checked instead of guessing. Medical experts suggest avoiding high-dose supplements without a doctor's guidance.