The world’s oldest practicing doctor, Howard Tucker, has shared his insights into why Americans were slimmer and healthier in the past. At 102 years old, Dr. Tucker, who practiced neurology in Ohio until 2022, continues to send out job applications as he approaches his 103rd birthday. His longevity and health have drawn attention, prompting many to ask about his lifestyle choices.
Dr. Tucker attributes his health to a diet of home-cooked meals and smaller portions, avoiding trendy diets while not shying away from carbohydrates or red meat. His typical breakfast includes a piece of toast and some fruit, while dinner is often a piece of steak, chicken, or fish with vegetables or a salad. Notably, he often skips lunch, eating only when hungry, which he believes contrasts with modern eating habits.
In an interview with National Geographic, Dr. Tucker stated,
‘While I don’t believe one diet fits all, it’s clear that incorporating more whole, healthy foods as opposed to processed, fried, or sugary treats can help prevent medical issues in the long run.’
He emphasized moderation, cautioning against extreme diets and trends, and highlighted the role of genetics and luck in longevity.
America’s Changing Waistline
America’s waistline has expanded significantly over the decades. In 2024, 43 percent of Americans were considered obese, a stark increase from the 13 percent in the 1960s when Dr. Tucker graduated from medical school. Data from the late 1970s showed that Americans consumed about six percent of their calories from fast food, a figure that has nearly doubled today.
Research indicates that not only are Americans eating more, but the size and calorie content of food has surged. Between 1986 and 2016, the average burger increased by 39 grams and 90 calories, now containing 41.6 percent of the daily salt allowance compared to 27.8 percent initially. Fast food desserts have also ballooned, with an average increase of 71 grams and 186 calories over four decades.
Dr. Tucker suggests countering these trends by cooking meals at home. Despite his disciplined diet, he allows himself occasional treats, enjoying ice cream, donuts, and homemade pickles. He also enjoys a martini, undeterred by recent studies linking alcohol to cancer, stressing that moderation is key.
Exercise and Lifelong Learning
Dr. Tucker maintains an active lifestyle, using a treadmill at a slower pace and jogging when possible. He emphasizes the benefits of walking, which he says strengthens the heart and stimulates the brain. Despite a skiing accident at 80 that injured his neck, he continues to prioritize physical activity.
Beyond physical health, Dr. Tucker advocates for mental stimulation through continuous learning and social interaction. He encourages forming friendships with younger individuals to keep the mind sharp. He completed a law degree at 67 and regularly reads neurology journals. Recently, he enrolled in a computer course, demonstrating his commitment to lifelong learning.
Retirement as the ‘Enemy of Longevity’
Dr. Tucker warns against retirement, calling it the ‘enemy of longevity’ due to its potential to reduce decision-making and social interaction, which may accelerate decline. He stopped working only because the hospital where he practiced closed in 2022. Despite applying for new positions, he faces rejections, likely due to his age.
Dr. Tucker’s remarkable life and career have earned him recognition, including an award from the Guinness World Records as the oldest practicing doctor. His story is a testament to the benefits of moderation, active living, and continuous learning, offering valuable lessons for those seeking a healthier, longer life.
