India, May 3 -- Persistent tiredness and body aches are c o m m o n h e a l t h complaints and affect productivity and quality of life. These symptoms are usually shrugged off as inconsequential by family members, colleagues, and health workers, and sometimes by the afflicted themselves, as caused by overwork. These symptoms are often caused by a stressful lifestyle, lack of sleep, nutrient deficiencies, anaemia, obesity, imbalanced hormones, or sometimes due to postviral recovery, chronic inflammation, and disease. An understanding of these causes can help avoid or reduce the suffering. Acute inflammation is a healthy, short-term response to injury, while chronic inflammation is damage to healthy tissues due to a misguided, persistent im...