Lifestyle & Prevention

Hydration, substances, labs and screening.

The "eight glasses" rule is a guide, not a law.

There is no completely risk-free level, but some is safer than more.

Why the same drinks affect people differently.

Up to 400 mg a day is considered safe for most adults.

Health improvements begin within minutes and the savings are large.

Prevent sunburn and lower skin cancer risk with simple habits.

Understand eGFR, creatinine and when kidney disease is diagnosed.

Sodium, calcium and anion gap in plain language.

Fever is a symptom, not a disease. Know the red flags.

Who should have low-dose CT scans.

Common screenings and the ages they usually start.

Gradual progression is the secret to lasting activity.