A Boy Born and Raised on Mars Visit the Earth at the Age of 16, Will He Able to Survive Here or Not?

A boy born and raised on Mars makes his first journey to Earth at the age of 16, having lived his entire life in a low-gravity, low-pressure environment with limited sunlight. His body, accustomed to Mars' weaker gravity, has developed differently from humans on Earth: weaker muscles, lower bone density, and a potentially compromised immune system due to Mars' isolated ecosystem. Now, he faces Earth's intense gravity, denser atmosphere, and a barrage of unfamiliar microbes. Can his body adapt to Earth's challenging conditions, or will he need medical and technological assistance to survive?