How much vitamin D per day do you need? Most adults need 600 IU and people over 70 need 800 IU. See amounts by age, food sources and the upper limit.
Why Blood Pressure Is Higher in the Morning, and When It Matters
Why blood pressure is higher in the morning: hormones and nerves that wake the body, when a surge matters, common causes and how to measure it at home.
Medicare Part B: 2026 Costs, Coverage and Enrollment Rules
What is Medicare Part B? It covers doctors and outpatient care. In 2026 the premium is $202.90 a month and the deductible $283. Penalties explained.
Normal Blood Pressure by Age: Averages, Ranges and Targets
Blood pressure average by age vs what is normal: official 2025 AHA ranges, CDC data by age group, systolic vs diastolic, and how to measure at home.