Feeling tired can be caused by many factors including not getting enough quality sleep, nutritional deficiencies, stress, or underlying health conditions. Common reasons for persistent tiredness include sleep disorders such as insomnia or sleep apnea, thyroid problems, poor diet, dehydration, excessive caffeine or alcohol consumption, mental health issues like anxiety or depression, and chronic illnesses like diabetes or heart disease.

To reduce tiredness, it is important to ensure adequate sleep (7+ hours for adults), manage stress, maintain a balanced diet rich in nutrients, stay hydrated, limit caffeine and alcohol intake, and engage in regular exercise. If tiredness persists despite lifestyle adjustments, it may signal an underlying medical condition that requires evaluation by a healthcare professional.

In summary, being "so tired" can result from lifestyle habits, sleep quality, physiological issues, or medical conditions, and addressing these factors can help restore energy levels.