In a recent Instagram video, Dr. Jeremy London, a board-certified cardiothoracic surgeon based in the United States, outlined five habits that can accelerate the aging process. He emphasizes that many people focus on external solutions like skincare and supplements while neglecting fundamental lifestyle choices. Smoking and vaping are at the top of his list, as they introduce toxic substances that increase oxidative stress and damage DNA. A sedentary lifestyle is another major factor; prolonged sitting hampers oxygen delivery and energy production, which can lead to faster aging. Dr. London also highlights the impact of chronic stress, which can lead to inflammation and disrupt DNA regulation. Moreover, he stresses the importance of quality sleep, noting that inadequate rest affects critical bodily functions such as DNA repair. Lastly, an unhealthy diet contributes to obesity and metabolic issues, further accelerating aging. Ultimately, Dr. London advocates for healthier lifestyle choices to support internal health and slow down the aging process.