Modern day lifestyle trend has been severe cause to many health issues and resulting in cardiovascular diseases, obesity, Endocrine related disease and many others. Today people are adapting healthy lifestyle like engaging in physical activity, Improved Food patterns, and Work styles but still the longevity is in lower range in many countries. We made a literature review from different data available on Sleep time and habits, Non-Exercise activity thermogenesis (NEAT), Food pattern and food trend to discuss the suggestive effect on factors like cortisol, Telomere, Obesity, Cardiovascular factors, Change in circadian rhythm and others that causes increased mortality rate and decreased health index with compared to earlier century lifestyle. The review finds that lower average sleep time and differed sleep time affects cortisol cycle, Glymphatic system cycle. Increased consumption of processed food and sugar sweetened beverages resulted in high empty calorific consumption than RDA and resulting Telomere shortening and obesity which may lead to early aging, weakened immunity and mortality. Lower NEAT affects the obesity as well as overrides the benefits of Exercise. Thus indicating decreased Health index and may be cause of decreased longevity compared to ancient life styles
