In defiance of centuries of expert medical advice and proof positive, U.S. president Donald Trump proudly declares he doesn't exercise because this kind of muscular exertion depletes his body's "finite energy."

Trump's inane excuse for his laziness seems to have begun after he left college. Previous stories about him confirm his belief "the human body is like a battery, with a finite amount of energy, which exercise only depleted."

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This piece of Trumpian ignorance is way up there on the Stupid-O-Meter along with his impolite take-down of historians who rejected the accuracy of a plaque written by Trump stating there was a battle so gory fought on one of his golf courses "that the water would turn red and thus became known as the 'River of Blood'."

Historians rejected Trump's claim as an outright lie because the battle never occurred where Trump said it did (on his golf course), and the casualties at a place called The Rapids on the Potomac River during the Civil War weren't that horrific.

Reacting to this historic slap in the face by historians, Trump said dismissively, "How would they know? Were they there?"

Trump's Neanderthal view counters irrefutable proof that physical exercise enhances or maintains physical fitness and overall health and wellness.

Frequent and regular physical exercise also boosts the immune system and helps prevent "diseases of affluence" such as cardiovascular disease, Type 2 diabetes and obesity (and Trump is obese).

Trump, who is 70 years old, is 188 cm tall (6'3"). He weighs 107 kg (236 lbs) and his BMI of 30 classifies him as "full-on obese." The medical definition of obesity is a BMI of 30 or greater.

And obesity, especially in a septuagenarian such as Trump, is a major health risk.

But Trump doesn't care he's obese as long as he doesn't use up his "finite energy."

Instead of thinking of energy stores as a battery as Trump does, "a better analogy would be like the fire that you continue to fuel with more coal or wood," said Michael Jonesco, a sports medicine and orthopedics specialist at Ohio State University's Wexner Medical Center.

"You need to continue to add fuel, or your flame will die. This is true whether you exercise or not ... Simply by existing, we are burning energy."

Tagsdonald trump, exercise, "finite energy", "finite energy", physical fitness, health and wellness, obese, BMI