1. Drink enough water. Mild dehydration is common and can cause tiredness and headaches. Keep a bottle nearby and sip through the day.
2. Move a little, often. A short walk after meals helps digestion and energy more than a single long workout once a week.
3. Protect your sleep. Aim for a regular bedtime and put screens away earlier — good sleep supports your immune system and mood.
4. Eat more whole foods. Vegetables, fruit, lentils and fish add fibre and nutrients that processed snacks lack.
5. Take medicines as prescribed. Finish the full course of antibiotics, and don't skip doses of long-term medicines without asking your doctor. Consistency is what makes treatment work.