MEN'S HEALTH

The research was done on men.
Most apps still don't use it well.

Exercise science was built primarily on male subjects. But that does not mean your fitness app actually accounts for male-specific physiology. Vora is built to adapt to all of it.

Testosterone Decline CurveRelative level (%) by age
Peak
100%
20
97%
25
~1%/yr decline begins
93%
30
87%
35
80%
40
73%
45
66%
50
59%
55
Clinically low threshold
52%
60
Source: Massachusetts Male Aging Study; Endocrine Society clinical guidelines300 ng/dL = clinically low
VO2 Max & Mortality

Low cardiorespiratory fitness carries a higher mortality risk than smoking.

A 2018 JAMA Network Open study of 122,007 patients found that low cardiorespiratory fitness was the single strongest predictor of all-cause mortality. Elite fitness had no upper limit of benefit.

Relative mortality risk by fitness tier
5x
Low
2.5x
Below Avg
1.5x
Above Avg
1x
High
0.8x
Elite
Mandsager et al., JAMA Network Open, 2018 (n=122,007)Low fitness = 5x mortality vs. Elite
Decade by Decade

Your body changes every decade. Your training should too.

20s
Physiology

Peak testosterone, highest recovery capacity, bone density still consolidating

Training priority

Build base strength and aerobic capacity. Establish movement patterns.

What Vora adapts

Progressive overload tracking, VO2 max baseline, caloric surplus optimization

30s
Physiology

T declines ~1%/yr, metabolic rate slows, visceral fat accumulation begins

Training priority

Maintain muscle mass. Prioritize cardiovascular health markers.

What Vora adapts

Recovery adjustment, body composition alerts, training intensity calibration

40s
Physiology

15-20% T reduction from peak, tendon recovery slows, sarcopenia risk rises

Training priority

Injury prevention, joint health, sustained protein intake above 1.6g/kg.

What Vora adapts

Deload frequency increase, HRV-based load management, metabolic risk tracking

50s+
Physiology

30-50% T reduction, cardiovascular risk elevated, muscle loss accelerates

Training priority

Resistance training is non-negotiable. Focus on functional strength and balance.

What Vora adapts

Age-adaptive recovery windows, cardiovascular monitoring, fall risk indicators

Deep Dives

The science behind the recommendations

TESTOSTERONE12 min read

Testosterone and Training: Separating Research from Bro-Science

10-15%T drop from just one week
of sleep restriction

Natural decline is real but manageable. Compound lifts do raise acute T, but the long-term hypertrophy signal matters more. Sleep is the most underrated lever. Overtraining crashes cortisol ratios. The evidence on supplements is thinner than you think.

Read the full guide
CARDIOVASCULAR HEALTH10 min read

Cardiovascular Health for Men: The Data Your Wearable Is Already Collecting

Men
~45
Women
~55
Men develop heart disease ~10 years earlier than women on average. Age of onset matters.

VO2 max is the single strongest predictor of all-cause mortality. Your wearable is already collecting the signals that matter most. Resting heart rate trends, HRV patterns, and exercise recovery curves tell a story most apps ignore.

Read the full guide
TRAINING THROUGH THE DECADES11 min read

Training After 30: How to Adapt as Your Body Changes

Muscle loss3-8%/decade
Tendon recovery+40% slower by 50
Protein need1.6-2.2g/kg

What changes in your 30s, 40s, 50s, and beyond. Protein needs, recovery capacity, injury prevention, and why consistency starts beating intensity as the primary driver of results after 30.

Read the full guide
BODY COMPOSITION9 min read

Visceral Fat, Body Composition, and the Metrics That Actually Matter

40"
Waist circumference threshold
Above 40 inches in men = elevated metabolic syndrome risk, independent of BMI

BMI fails at distinguishing muscle from fat. Visceral fat is the most dangerous fat depot in the body, and the skinny-fat pattern is more common than most men realize. Waist-to-hip ratio and body composition trends predict long-term outcomes far better.

Read the full guide

Male physiology is not static

~20%
less testosterone by age 45 vs. peak
3-8%
muscle mass lost per decade without resistance training
2x
heart attack risk for men before age 55 vs. women
40 in
waist threshold for elevated metabolic risk

Most fitness apps give a 22-year-old and a 48-year-old the same recovery model, the same protein targets, and the same training expectations. That is not just imprecise. It is wrong. A 48-year-old man has roughly 20% less testosterone, slower tendon recovery, higher cardiovascular risk, different fat distribution, and meaningfully different protein synthesis thresholds.

The data on these changes exists. The Massachusetts Male Aging Study, the JAMA cardiovascular fitness research, the protein meta-analyses, the sarcopenia literature. The science is clear. Most apps just do not apply it.

Vora uses your age, training history, biometric trends, and health data to build recovery models, training plans, and nutrition targets that reflect where your body actually is - not where it was a decade ago.

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A health app that adapts to your biology

Age-adaptive recovery, cardiovascular monitoring, and training that evolves with your physiology. Free to start.

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