Is it possible for someone to survive solely on pure oxygen without any other gases present during daily activities such as sleeping, eating, and exercising?

Surviving solely on pure oxygen without other gases present during daily activities like sleeping, eating, and exercising is not feasible and can be detrimental to health. While oxygen is essential for life, breathing pure oxygen for prolonged periods can lead to oxygen toxicity, causing lung damage, vision impairment, and seizures. Moreover, our bodies require a balanced mixture of gases for physiological processes. For instance, nitrogen plays a crucial role in maintaining the structure and function of tissues.

During sleep, the body's metabolic rate decreases, and oxygen requirements decrease accordingly. However, breathing pure oxygen can disrupt the body's natural balance and lead to oxygen-related issues. Similarly, during eating and exercising, the body needs a diverse array of gases to support various metabolic functions. Oxygen alone cannot fulfill these needs.

Furthermore, exposure to pure oxygen in everyday activities may increase the risk of fire hazards due to its highly reactive nature. In summary, while oxygen is vital for life, it must be consumed in moderation within the context of a balanced atmospheric composition to ensure optimal health and well-being.