Topics

Cardiovascular Risk

WELL CURVE

Are energy drinks bad for you? What the heart data show

For a healthy adult an occasional can is unlikely to harm. But in a randomised trial, 32 ounces raised blood pressure and prolonged the heart's QT interval more than placebo — and paediatricians say no to children.

WHAT THE STUDY ACTUALLY SAYS

Should healthy adults get a screening ECG?

US preventive guidance recommends against a resting or exercise ECG in symptom-free adults at low cardiovascular risk, and finds the evidence insufficient at higher risk. The tracing rarely changes treatment.

WHAT THE STUDY ACTUALLY SAYS

Does colchicine, an old gout drug, prevent heart attacks?

Two trials found low-dose colchicine cut cardiovascular events, and the FDA approved it for heart risk in 2023. Then the largest trial found nothing, leaving the question genuinely unsettled.

WHAT THE STUDY ACTUALLY SAYS

Glycaemic index: does choosing low-GI foods actually help?

In a tightly controlled feeding trial, swapping high-GI for low-GI carbohydrate inside a healthy diet did not improve insulin sensitivity, cholesterol or blood pressure. The wider evidence rates the GI case as weak.