Understanding Erectile Dysfunction
Erectile dysfunction (ED) is defined as the persistent inability to achieve or maintain an erection sufficient for satisfactory sexual performance. Occasional difficulties are normal; persistent ED warrants medical evaluation because it is often a marker of underlying cardiovascular, hormonal, or psychological conditions.
ED becomes more common with age, but it is not an inevitable consequence of ageing. It is a vascular condition in most cases — driven by the same risk factors that cause coronary artery disease: diabetes, hypertension, high cholesterol, smoking, and physical inactivity.
PDE5 Inhibitors: The Medical Standard of Care
Phosphodiesterase type 5 (PDE5) inhibitors — sildenafil (Viagra), tadalafil (Cialis), and vardenafil (Levitra) — are the first-line pharmaceutical treatment for ED. They work by enhancing the effect of nitric oxide in the smooth muscle of the penis, increasing blood flow and facilitating erection in response to sexual stimulation.
Sildenafil typically acts within 30–60 minutes and lasts 4–6 hours. Tadalafil has a longer half-life, providing effectiveness for up to 36 hours — offering more spontaneity. Low-dose daily tadalafil is also used for men who prefer not to plan around medication timing.
Lifestyle Changes That Complement Treatment
For men with lifestyle-related ED, addressing the underlying vascular risk factors often produces significant improvement. Regular aerobic exercise, smoking cessation, healthy weight, and reduced alcohol consumption can meaningfully restore erectile function — sometimes without the need for ongoing medication. These changes also reduce cardiovascular risk, providing broader health benefits beyond sexual function.
