How often should blood work be done?

According to Andrew Huberman, the frequency of blood work depends on various factors, including your age and health status:

1. Ages 18 to 40: It's ideal to get blood work done every 3 to 5 years if no health issues are suspected. Establishing baselines early can be useful.
2. After Age 40: Annual blood work is recommended to monitor key health markers like hormone levels and cholesterol 1.

For individuals who start early (e.g., at 18), a good follow-up interval is about six months if any issues are found that need optimization. Otherwise, an annual check-up is advisable 2.

However, Peter Attia notes that the frequency should be tailored to any interventions or health concerns. Generally, blood tests should have a purpose, such as monitoring the effects of a treatment or a specific health condition 3.

In summary:

• 18-40 years: Every 3-5 years (more if issues arise)
• 40+ years: Annually
• After interventions/conditions: As needed, potentially more frequent monitoring

Always consult with a healthcare provider to tailor the frequency to your specific needs.