Evidence-Based Health & Performance After 40

Latest APP Articles

Practical, evidence-informed guidance on strength, nutrition, fat loss, and performance after 40.

More APP Articles

Start with the free APP Weight Loss Blueprint for a practical framework.

Evidence Library

Explore research and professional guidelines by topic. These source links complement APP’s articles above.

Nutrition

Protein Intake for Muscle Growth

International Society of Sports Nutrition Position Stand

Supports:

  • 1.4–2.0 g/kg/day protein
  • Muscle preservation
  • Fat loss
  • Recovery
Read More

Mediterranean Diet

New England Journal of Medicine

Supports:

  • Cardiovascular health
  • Longevity
  • Reduced mortality
  • Metabolic health
Read More

Fat Loss

Intermittent Fasting

New England Journal of Medicine Review

Supports:

  • Weight loss
  • Insulin sensitivity
  • Metabolic flexibility
  • Reduced inflammation
Read More

Time-Restricted Eating

Harvard Health Summary of Recent Review

Supports:

  • Greater fat loss with exercise
  • Lean mass preservation
  • Cardiometabolic health
Read More

Obesity Guidelines

American Association of Clinical Endocrinology

Supports:

  • Weight loss
  • Nutrition
  • Lifestyle medicine
  • Obesity treatment
Read More

Exercise & Performance

Resistance Training & Healthy Aging

American College of Sports Medicine Position Stand

Supports:

  • Muscle growth
  • Strength
  • Healthy aging
  • Body composition
  • Functional independence
Read More

Resistance Training Reduces Mortality

Systematic Review & Meta-analysis

Supports:

  • Reduced all-cause mortality
  • Reduced cardiovascular disease
  • Improved longevity
Read More

HIIT Improves Fitness & Metabolic Health

Evidence-Based Review

Supports:

  • VO₂ max
  • Cardiovascular fitness
  • Insulin sensitivity
  • Fat loss
  • Time-efficient exercise
Read More

Physical Activity Guidelines

U.S. Department of Health & Human Services

Supports:

  • Exercise recommendations
  • Strength training
  • Aerobic exercise
  • Longevity
Read More

American Heart Association Exercise Recommendations

Supports:

  • Cardiovascular health
  • Blood pressure
  • Weight control
  • Heart disease prevention
Read More

Exercise Is Medicine®

Supports:

  • Exercise as preventive medicine
  • Chronic disease reduction
  • Healthy aging
Read More

Longevity

National Institute on Aging

Supports:

  • Exercise after age 50
  • Strength
  • Balance
  • Mobility
  • Longevity
Read More

American College of Sports Medicine

Supports:

  • Exercise prescription
  • Healthy aging
  • Strength training
  • Cardiorespiratory fitness
Read More

Hormones

Sleep & Recovery

American Academy of Sleep Medicine

Supports:

  • Hormone regulation
  • Recovery
  • Athletic performance
  • Longevity
Read More

Recovery

Sleep & Recovery

American Academy of Sleep Medicine

Supports:

  • Hormone regulation
  • Recovery
  • Athletic performance
  • Longevity
Read More

HIIT Improves Fitness & Metabolic Health

Evidence-Based Review

Supports:

  • VO₂ max
  • Cardiovascular fitness
  • Insulin sensitivity
  • Fat loss
  • Time-efficient exercise
Read More

Supplements

Creatine Monohydrate

International Society of Sports Nutrition Position Stand

Supports:

  • Strength
  • Muscle growth
  • Recovery
  • Brain health
  • Healthy aging
Read More

Protein Intake for Muscle Growth

International Society of Sports Nutrition Position Stand

Supports:

  • 1.4–2.0 g/kg/day protein
  • Muscle preservation
  • Fat loss
  • Recovery
Read More

Our Commitment to Evidence-Based Health

At Ageless Performance Project, our educational content is built on peer-reviewed scientific research, consensus statements, and clinical practice guidelines from respected medical and scientific organizations. As new evidence emerges, our recommendations evolve to reflect the best available science. While no single study provides all the answers, we strive to present balanced, evidence-informed guidance to help you make confident decisions about your health, fitness, and longevity.