20/05/2026
MS is believed to be caused by a mix of genetic and environmental factors. In people with MS, the immune system mistakenly attacks myelin — the protective layer around nerves — disrupting communication between the brain and body.
Researchers still don’t know the exact trigger, but key risk factors include:
🧬 Genetics
☀️ Low vitamin D / low sunlight exposure
🦠 Epstein-Barr virus (EBV)
🚬 Smoking
⚖️ Childhood or adolescent obesity
MS is not directly hereditary, and having certain genes only increases risk — it doesn’t guarantee someone will develop the condition. Scientists continue researching the causes to improve prevention and treatment. 💙