Answers to your questions:

• What are the different types of subscriptions?
• The Pillars of Spren Blood Testing
• I’m having trouble collecting enough blood for the test, what can I do?
• Which biomarkers are being tested?
• Testosterone, Total
• How is my test shipped to me?
• Apolipoprotein B (APOB)
• Vitamin D
• How do I view my test results?
• I think I messed up my collection card. What do I do?

Browse all articles

• What is a good HRV score?
• Why HRV Morning Readiness?
• Readiness Score Doesn't Match How I'm Feeling
• Why Green Isn’t Always Good
• What are R-R intervals?
• Is a higher HRV always ‘better’?
• Why back-to-back readings produce different results
• Why is the Morning Readiness Reading Useful?
• Heart Rate (HRV) vs. Heart Rate (HR)
• How do you calculate the HRV score?

Browse all articles

• Getting Started with Personalized Nutrition
• Nutrition Plan References and Citations
• What is Personalized Nutrition?

• What is included with the AI Coach?
• Why was I charged twice?
• How do I contact customer support?
• Are there any additional fees I should know about with the AI Coach?
• Can I sync with other fitness trackers or apps?
• How can I get a copy of my receipt for AI coaching?
• Can anyone else see the conversations I am having with my coach?
• Can I access my AI Chat account on multiple devices?
• Is my data secure?
• Can I set reminders for specific goals?

Browse all articles

• How accurate is Spren?
• What is a healthy body fat percentage?
• What to expect over time
• Using RMR to Optimize Your Diet for Fat Loss
• Types of Body Fat
• How often should I scan myself?
• Body Fat vs BMI
• How to Use RMR to Build Muscle
• Body Fat: Benefits and Risks
• The Importance of Lean Mass for Healthy Aging

Browse all articles