Drink lots of Clean Water – All kinds of issues can arise from dehydration. Weight gain, headaches, exhaustion, constipation, a weakened immune system etc. Water can help with detox, clarity of thought, increase energy, muscle repair and much more. Drink water before anything else in the morning. Before coffee, breakfast, anything and then continue to drink water throughout the day. You will feel better all day for it. Amounts will vary according to your activity levels, temperature etc.