When to wash hands:
  Before: eating, cooking, treating wounds
  After: toilet, touching garbage, handling raw meat, coughing/sneezing
  
How to wash (WHO 6-step method, 40-60 seconds):
  1. Wet hands with clean water, apply soap
  2. Rub palms together
  3. Rub back of each hand (palm over dorsum)
  4. Interlace fingers, rub between them
  5. Rub backs of fingers (hands clasped)
  6. Rotate thumb in clasped palm
  7. Rub fingertips in palm (both hands)
  8. Rinse thoroughly, dry with clean towel

Soap vs Hand Sanitizer:
  Soap: better for visible dirt, removes more pathogens
  Sanitizer (≥60% alcohol): convenient when no water, good for COVID/flu
  Soap better for: C. difficile, norovirus, cryptosporidium

Brushing:
  Twice daily — morning + before bed (most important)
  2 minutes each time
  Soft-bristled brush, fluoride toothpaste
  Technique: 45° angle to gums, gentle circular motions
  Replace brush every 3 months (or after illness)

Flossing:
  Once daily (before brushing)
  Most cavities form between teeth — brush alone can't reach
  Alternative: water flosser (Waterpik)

Dental visits: Every 6 months for cleaning and check-up
Avoid: Excessive sugar/acid (erodes enamel), smoking (gum disease, cancer)

Daily:
  Bath/shower: removes sweat, bacteria, dead skin cells
  Underarm hygiene: most body odor originates here
  Clean clothes: socks and underwear changed daily

Skin care:
  Moisturize: prevents dry skin and cracks (entry points for bacteria)
  Sunscreen: minimum SPF 30 daily, reapply every 2 hours outdoors
  
Food hygiene:
  Wash fruits/vegetables before eating
  Separate raw meat from other foods
  Cook food to proper temperatures
  Refrigerate leftovers within 2 hours
  Don't refreeze thawed meat