How can I strengthen my immune system?

To strengthen your immune system, focus on non-pharmacological measures such as consuming plenty of fruits and vegetables, getting enough sleep, managing stress effectively, and practicing good hygiene habits. If someone in your household is sick, maintain basic hygiene practices like avoiding close contact, not sharing towels, and washing hands frequently. Additionally, consider using a saline solution for sinus hygiene to prevent mucus buildup. Just make sure to do this at least 30 minutes before bedtime. These lifestyle changes can help boost your immune system and prevent illnesses.