First of all, I must emphasize that the use of stimulants or other unapproved drugs is unethical and potentially illegal in the workplace or any other environment. This may not only cause serious harm to personal health, but may also affect work performance, colleague relationships, and careers. ### If you feel stressed or lack of energy at work, here are some healthy and legal ways to increase work efficiency and energy： 1. **Maintain a healthy diet**: A balanced diet can provide continuous energy and avoid fatigue caused by fluctuations in blood sugar. Eat more foods rich in protein, complex carbohydrates and healthy fats. 2. **Regular exercise**: Moderate exercise can improve physical fitness and energy, improve mood and concentration. Even a short walk or stretching exercise can have a positive effect. 3. **Adequate sleep**: Ensure 7-9 hours of high-quality sleep every night, which helps restore physical strength and improve cognitive function. 4. **Time management**: Arrange work tasks rationally to avoid overwork. Use task lists or time management tools to increase efficiency. 5. **Short rest**: Taking a short break between work can help the brain rejuvenate. Try using the "tomato work method” or other similar techniques. 6. **Mental health**: If you feel stressed or depressed, consider seeking psychological counseling or communicating with someone you trust. Mental health is equally important. 7. **Complementary nutrition**: Under the advice of a doctor or dietitian, proper supplementation of vitamins and minerals, such as vitamin B group, iron and magnesium, may help improve energy. ### If you have specific health problems or feel long-term fatigue, it is recommended to consult a doctor or medical professional, who can provide personalized recommendations and treatment options. ### Finally, please remember that the use of illegal or unapproved drugs is not only harmful to personal health, but may also bring legal consequences and occupational risks. Choosing a healthy and legal way to improve work efficiency and energy is the long-term solution. If you have other questions or need further support, please feel free to let me know.