To improve sexual stamina, both lifestyle changes and medical options can help. Natural approaches include regular cardiovascular exercise to improve blood flow, pelvic floor exercises (Kegels) to delay ejaculation, and stress reduction. A balanced diet rich in L-arginine (found in nuts and leafy greens) also supports circulation. Medications depend on the underlying cause. If stamina is affected by erectile dysfunction, PDE5 inhibitors like Sildenafil (Viagra) or Tadalafil (Cialis) are highly effective. For premature ejaculation, doctors may prescribe SSRIs like Dapoxetine or recommend topical desensitizing sprays. Please consult a healthcare provider to safely discuss the best option for you.