Living standards have improved significantly, leading to a noticeable rise in average life expectancy. However, many people, especially young adults, may be unintentionally shortening their lives through unhealthy daily habits.
Life expectancy depends not only on genetics and economic conditions but also heavily on lifestyle and daily habits. Work pressure, busy routines, and personal entertainment often lead many people to neglect their health, increasing the risk of serious chronic diseases.
Healthy habits can strengthen the body and contribute to a longer life, yet unhealthy routines may gradually erode overall health, according to the Suc Khoe & Doi Song news site.
Unhealthy eating and changing living habits
Poor eating habits and irregular lifestyles are among the leading factors affecting long-term health. Many young people frequently eat fast food, greasy meals, and processed foods while paying little attention to nutrition. Diets high in saturated fats, red meat, and fried foods, combined with low intake of fruits and vegetables, can increase the risk of obesity, cardiovascular disease, fatty liver disease, and digestive disorders. Irregular eating habits, such as skipping meals or eating late at night, may also strain the digestive system.
An undisciplined lifestyle can disrupt the body’s biological clock, undermine overall health, and potentially shorten life expectancy.
Chronic stress and negative emotions
Chronic stress and negative emotions can seriously harm both mental and physical health. Prolonged stress raises cortisol levels, weakens the immune system, and increases the risk of conditions such as hypertension, heart disease, and metabolic disorders. Stress may also disrupt sleep, leading to fatigue, poor concentration, and a higher risk of depression over time.
Health experts recommend maintaining a healthy work-life balance and engaging in activities such as exercise, meditation, and social interaction to improve mental well-being.
Neglecting personal hygiene
Basic hygiene habits such as brushing teeth, washing the face, and maintaining personal cleanliness may seem minor, but they can significantly affect long-term health. However, many people, particularly men, often overlook these routines.
Poor oral hygiene may increase the risk of tooth decay, gum disease, and other dental problems. Research has also linked oral health issues to conditions such as heart disease and diabetes.
In addition, poor hygiene can increase the risk of infectious diseases and weaken overall health. Health experts say that maintaining good personal hygiene is an essential part of disease prevention and healthy living.
Avoiding regular health checkups
Many people avoid routine medical checkups and seek treatment only when symptoms become severe. Others rely on self-medication rather than consulting healthcare professionals.
However, serious diseases such as cancer, diabetes, and hypertension often develop silently in the early stages, without obvious warning signs. Delayed diagnosis and treatment can increase the risk of severe complications and shorten life expectancy.
The misuse of medication, particularly painkillers, antibiotics, or unverified supplements, may also damage the liver and kidneys and make health conditions harder to treat. Health experts recommend routine medical checkups at least once or twice a year to detect abnormalities early and receive timely treatment.
Staying up late regularly

Staying up late is increasingly common, especially among young people and those in stressful work environments. Many sacrifice sleep for work, entertainment, or social activities without recognizing the long-term health risks.
Sleep is essential for recovery and for maintaining normal bodily functions. Sleep deprivation may disrupt hormone balance, weaken the immune system, impair memory, and increase the risk of conditions such as heart disease, diabetes, and obesity.
Lack of sleep can also affect mental well-being, causing fatigue, irritability, and reduced job performance.
A healthy lifestyle is key to longevity
Health experts say longevity depends not only on genetics but also on daily lifestyle choices. Adopting healthier habits and maintaining a balanced routine can play an important role in preserving long-term health.
A balanced diet, consistent daily habits, positive mental health, good personal hygiene, and routine medical checkups can help reduce the risk of disease and improve quality of life. As chronic illnesses increasingly affect younger populations, taking care of one’s health early is one of the most important investments in the future.