Guides
Hydration guides
Long-form articles on daily water intake, popular water rituals, and hydration for specific goals. Each guide links to a matching calculator.
How Much Water Should a 160 kg (353 lb) Person Drink?
Daily water target for a 160 kg (353 lb) adult — baseline, active, hot climate, and weight loss adjustments in ml and cups.
Water and metabolism: What the Research Actually Shows
Evidence-based look at water and metabolism — practical intake targets and habits to boost your metabolic rate.
Water and immunity: What the Research Actually Shows
Evidence-based look at water and immunity — practical intake targets and habits to strengthen immune function.
Water and cortisol: What the Research Actually Shows
Evidence-based look at water and cortisol — practical intake targets and habits to lower stress hormone.
Water and testosterone: What the Research Actually Shows
Evidence-based look at water and testosterone — practical intake targets and habits to support hormonal balance.
Water and estrogen: What the Research Actually Shows
Evidence-based look at water and estrogen — practical intake targets and habits to support female hormones.
Water and melatonin: What the Research Actually Shows
Evidence-based look at water and melatonin — practical intake targets and habits to improve sleep hormone.
Water and collagen: What the Research Actually Shows
Evidence-based look at water and collagen — practical intake targets and habits to support skin collagen.
Water and the lymphatic system: What the Research Actually Shows
Evidence-based look at water and the lymphatic system — practical intake targets and habits to support lymphatic drainage.
Water and fascia: What the Research Actually Shows
Evidence-based look at water and fascia — practical intake targets and habits to hydrate connective tissue.
Water and cartilage: What the Research Actually Shows
Evidence-based look at water and cartilage — practical intake targets and habits to protect joint cartilage.
Water and vision: What the Research Actually Shows
Evidence-based look at water and vision — practical intake targets and habits to support eye pressure.