Are Singaporeans getting enough sleep? How much sleep do we really need in our 20s, 40s or 60s? While sleep deprivation is often associated with fatigue and poor concentration, research has also linked it to a higher risk of heart disease and heart attacks. Lance Alexander speaks with Dr Kua Jieli, Interventional Cardiologist, Carrington Cardiology, Singapore to explain how poor sleep affects the heart, whether catching up on sleep over the weekend helps, why sleep quality matters, and what we can do to protect our heart health.