Other studies have demonstrated that lack of sleep may cause irregular and excessive hormone discharge patterns such as cortisol which is a stress hormone. This in turn results in low immunity. Be proactive and avoid stress by having someone you trust deal with the stressful responsibilities such as your invoices, children, family feuds, etc. Exercise will help boost your immune system and reduce stress levels. Try and get at least 30 minutes of exercise a day.
Relaxation is also essential to keep your stress levels low, so fill your life with things that make you feel good, whether it's a day at the spa, yoga, music or spending time with your loved ones.