A healthy diet involves consuming a variety of fruits and vegetables, lean protein, whole grains, and low-fat dairy products.   A healthy diet also involves restricting intake of saturated fats, cholesterol, salt, and added sugars.

Consuming a balanced diet supplies several nutrients that enhance immune system efficiency. Excessive intake of some vitamins and minerals might be detrimental. Consult your healthcare professional if you believe you require nutritional supplements.

Engaging in regular physical activity improves mood, enhances sleep quality, and alleviates stress. Physical activity, along with a balanced diet, can help an individual in managing a healthy weight.

Exercise has both immediate and long-term advantages. Engaging in physical activity can help shield you from the flu. Recent studies indicate that physical activity could positively impact the immune system.

Excessive weight might impact the functioning of your body. Obesity, characterised by a body mass index (BMI) of 30 or higher in adults, is associated with compromised immunological responses. Obesity can reduce the efficacy of vaccines for several diseases, such as influenza, hepatitis B, and tetanus.

To maintain a healthy weight safely, one should focus on lowering stress, consuming nutritious foods, ensuring adequate sleep, and participating in consistent physical activity.

There is increasing scientific evidence that sleep deprivation can have adverse effects on various components of the immune system. This can result in the emergence of a diverse range of illnesses.

Smoking can weaken the body's ability to combat diseases and the likelihood of immune system issues.

Refrain from excessive alcohol consumption. Chronic alcohol consumption can compromise the immune system.