- ICMR Warning
The Indian Council of Medical Research (ICMR) has warned that lifestyle factors like poor sleep quality and obesity significantly increase the risk of breast cancer in women. - Impact of Poor Sleep
Poor or irregular sleep disturbs the body’s biological clock (circadian rhythm). This affects hormone regulation, especially melatonin, which normally helps protect cells from cancer. Reduced melatonin can increase cancer-related cell growth. - Hormonal Imbalance
Lack of proper sleep leads to hormonal imbalance, increasing estrogen levels. High estrogen exposure over time is strongly linked to the development of breast cancer. - Role of Obesity
Obesity, particularly abdominal (waist) obesity, increases breast cancer risk. Fat tissue produces extra estrogen, which fuels the growth of hormone-sensitive breast cancer cells. - Inflammation and Insulin Resistance
Excess body fat causes chronic inflammation and insulin resistance, creating an environment that supports cancer development. - Combined Effect
When poor sleep and obesity occur together, their harmful effects multiply, further increasing breast cancer risk. - Preventive Role of Physical Activity
Regular exercise helps maintain healthy weight, balances hormones, improves sleep quality, and reduces inflammation—thereby lowering breast cancer risk. - ICMR’s Key Message
Breast cancer risk can be reduced through healthy sleep habits, weight management, balanced diet, and active lifestyle, along with regular screening and awareness.
Conclusion
ICMR emphasizes that breast cancer is not only influenced by genetics but also strongly linked to lifestyle. Simple changes in daily habits can play a powerful role in prevention.
