GradedHealth

Poor focus

Trouble concentrating, staying on task or keeping your mind sharp through the day.

5 findings across 4 topics. Strongest evidence: Caffeine (B).

Grades show how certain the evidence is, not how big the effect is. How we grade evidence

What helps

Caffeine

  • Sharpens attention when sleep-deprived — Benefit, grade B: Moderate
  • Sharpens attention when rested — Benefit, grade C: Limited

Mixed evidence

Time in Nature

  • Improves attention — Mixed results, grade C: Limited

Bacopa Monnieri

  • Speeds up attention and reaction time — Mixed results, grade C: Limited

Meditation

  • Improves focus and attention — Mixed results, grade C: Limited