Low Testosterone After 40: The Signs Nobody Talks About

 

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Funk Roberts, host of the Over 40 Alpha podcast and creator of the Over 40 Alpha program, joins me to discuss his experience with low testosterone, declining energy, and the health challenges he faced as he approached 40. At age 39, a routine physical revealed his testosterone level was just 189. That discovery pushed him to rethink his nutrition, training, sleep, and overall lifestyle.

We get into the symptoms he experienced, how he worked to improve his testosterone naturally, and why sleep, muscle recovery, and mental health are especially important for men over 40. Funk also explains his approach to metabolic resistance training, the difference between total and free testosterone, and how consistent habits can help men rebuild their strength and confidence.

We also discuss his recovery from a serious lung condition, the role of structured coaching, and why men should pay attention to their health instead of waiting until something goes wrong.

In this video, I cover:
• Funk Roberts' experience discovering his testosterone was 189 at age 39.
• The physical and mental health challenges he experienced.
• How changing his nutrition, training, and sleep helped him improve his health.
• Why sleep is essential for testosterone, muscle growth, and recovery.
• The importance of addressing men's mental and emotional health.
• How metabolic resistance training works and how it fits into his fitness approach.
• The difference between total, free, and bioavailable testosterone.
• His recovery from a serious lung condition and return to training.
• How small wins and consistency help men stay fit as they get older.

TIMESTAMPS:
00:32 Meet Funk Roberts and the Over 40 Alpha Approach  
01:44 The Testosterone Test That Changed Everything  
03:02 Symptoms of Low Testosterone and Their Impact  
04:35 Changing Nutrition and Training to Improve Health  
11:26 Why Sleep Matters for Testosterone and Recovery  
14:08 Men's Mental Health, Emotional Health, and Self-Sabotage  
18:00 Rebuilding Confidence and Changing Your Identity After 40  
22:14 How Funk Improved His Testosterone Naturally  
25:00 Recovering From a Serious Lung Condition  
27:08 The Results of His 90-Day Program  
29:04 Understanding Testosterone Levels  
30:25 Total vs. Free and Bioavailable Testosterone  
34:22 Metabolic Resistance Training Explained  
39:26 Building a Sustainable Fitness Program  
44:41 Nutrition and Supplements for Men Over 40  
47:07 Rapid-Fire Questions: Fitness and Personal Lessons  
55:59 Why Listening Matters in Leadership and Business  
57:53 Where to Find Funk Roberts and the Over 40 Alpha Program


About Zac Armstrong & No Hype, Just Standards: Zac Armstrong is a former Marine, Naval Officer, and F-18 Pilot who coaches executives and high-performing leaders to optimize their biological systems, overcome burnout, and achieve peak physical and mental performance using precision data.

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Executive Health Edge is a physician-supervised health optimization program for high-performing men aged 40 to 65. Founded by Zac Armstrong, a retired Naval Commander with 27 years of service as an enlisted Marine, Naval Officer, and F-18 fighter pilot, the program combines strategic blood analysis at 0, 6, and 12 months, WHOOP or Oura biometric tracking with a smart scale, and 1:1 concierge coaching under physician oversight.

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