In the last few years, biohacker and longevity entrepreneur Bryan Johnson has become famous for maintaining a picture-perfect health in order to defy the norms of aging. But this week, Johnson shared a shocking health update with his followers. He said that he has been diagnosed with Autoimmune Gastritis (AIG), a chronic autoimmune disease in which the immune system attacks the stomach lining. He said, “My stomach is eating itself.” Bryan Johnson's Diagnosis Of Autoimmune Gastritis Despite years of optimizing his body, Bryan’s Johnson Autoimmune Gastritis diagnosis shocked the internet. While his strict routines, meticulous diet, and million-dollar anti-ageing protocol continue to inspire millions, they also receive equal amounts of skepticism and criticism. Johnson recently revealed that he had struggled with persistently low iron stores for nearly 11 years, despite taking supplements.He said that a detailed evaluation confirmed Autoimmune Gastritis, an illness that damages the acid-producing cells of the stomach. The condition can impair absorption of iron and vitamin B12 and may increase the long-term risk of gastric cancer. He also disclosed that he has autoimmune thyroid disease, suggesting that multiple autoimmune conditions may be interconnected in his case. Amid his diagnosis, Johnson's journey raises a practical question: Which of his longevity habits are genuinely backed by science and worth adopting, and which remains experimental? Five Bryan Johnson Habits That Are Actually Worth Copying Prioritising Sleep Among all longevity interventions, sleep has the strongest scientific backing. Johnson consistently aims for a regular sleep schedule and treats sleep as a primary health priority. Unlike expensive biohacks, sleeping 7 to 9 hours consistently benefits almost everyone. Research has linked quality sleep with: Better immune function Lower cardiovascular risk Improved memory Better metabolic health Reduced inflammation Read more: Ebola Deaths In DRC Top 500 With At Least 1528 Cases Reported; What Makes This Outbreak Different & Deadlier? Eating Whole, Plant-Based Foods Johnson follows a predominantly plant-based diet rich in vegetables, legumes, nuts, seeds, and healthy fats. While optimal health is not connected with veganism, evidence supports that diets including vegetables, fruits, whole grains, beans, and nuts are associated with lower risks of heart disease, diabetes, and several cancers. Exercising Consistently Johnson combines strength training, cardiovascular exercises, mobility exercises, and walking throughout the day to stay healthy and fit. Research, too, recommends at least 150 minutes of moderate physical activity per week to enhance longevity. Tracking Basic Health Markers One of Johnson's greatest takeaways from his blueprint is tracking basic health markers. His long-standing low ferritin eventually prompted further investigation that disclosed his autoimmune gastritis. It reminds us that routine health check-ups often identify silent diseases before symptoms appear. For most people, daily monitoring should include: Blood pressure Blood sugar Cholesterol Iron levels Vitamin B12 if deficient or vegetarian Thyroid function when indicated Read more: Men Account For Nearly 3 Out Of 4 Suicides In India — Are We Ignoring A Growing Men's Mental Health Crisis?Avoiding Smoking And Drinking Alcohol Bryan avoids alcohol and tobacco completely. Research consistently suggests that avoiding smoking and limiting alcohol significantly reduce risks of cancer, liver disease, heart disease, stroke and other chronic lifestyle disorders. Which Parts Of Bryan Johnson's Routine Are Controversial? Bryan Johnson's Blueprint for longevity includes numerous habits that remain controversial or lack sufficient evidence. These include: Hundreds of daily supplements Intensive biomarker testing far beyond routine medical recommendations Experimental anti-ageing therapies Frequent advanced imaging Highly personalised protocols based on proprietary algorithms Many of these approaches have not been proven to extend lifespan in humans, and experts caution against assuming that more testing or consuming supplements automatically leads to better health.