Essential Health Screenings Every Adult Over 40 Needs

17. Vitamin D Level Test: The Silent Deficiency Check

Vitamin D is essential for bone health, immune function, mood regulation, and inflammation control. Yet deficiency is shockingly common, especially after 40, due to reduced sun exposure and absorption changes with age. A simple blood test can reveal if your levels are low. Deficiency can contribute to fatigue, depression, weakened bones, and increased risk of chronic disease. Correcting it is straightforward with supplements or dietary changes. Since symptoms are subtle, this test often uncovers what lifestyle alone may miss—making it a powerful, preventative check-in for anyone looking to maintain energy, immunity, and strength as they age.

18. Advanced Lipoprotein Testing: Beyond Basic Cholesterol

A standard cholesterol panel doesn’t always tell the whole story. Advanced lipoprotein testing (like LDL particle size, ApoB, and lipoprotein(a)) offers a deeper, more precise look at your cardiovascular risk—especially for those with normal cholesterol but a strong family history of heart disease. These tests help identify people with hidden risks who may benefit from earlier or more aggressive lifestyle changes or medications. If you’ve been told your numbers are “fine” but something still feels off, this deeper dive may provide the missing data. It’s the kind of proactive clarity that can literally save lives.