There are moments when you try to take care of yourself, but your body still feels run down. But immune health is not just about one habit. It is not just about taking vitamins or eating one healthy meal. It is shaped by what you do each day, often in ways that are easy to overlook.

Your immune system is not fixed. It is a highly responsive network influenced by your sleep, stress levels, nutrition, activity, and daily habits. Rather than being about “strength” alone, healthy immune function is about balance, coordination, and resilience.

Here are five common habits that can weaken your immune system, and how you can start supporting your body better.

Start the new year by prioritising your health. Learn how stress impacts your body and discover tips to stay healthy and resilient.