Heart & blood pressure
Antiplatelet
Aspirin (low dose)
Also known as: 75–100 mg 'baby' aspirin
Best time
Evening / bedtime
- 20:00–23:00
Bedtime dosing may better cover the early-morning peak in platelet stickiness.
Emerging evidence
Promising early or observational research — not yet standard practice everywhere.
Why this time works
Platelets are most reactive in the early morning, when heart attacks and strokes are most common. Several studies found bedtime low-dose aspirin lowered morning platelet reactivity more than morning dosing. It is not yet part of most guidelines.
Body rhythm involved
Platelet aggregation and cardiovascular events peak 06:00–12:00.