Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to increase dopamine sensitivity [title] Understand what dopamine is. [step] Dopamine is your " motivation molecule. " it boosts your drive, focus, and concentration.

Ending1: In order to make dopamine add of other substances, you need to use it. Dopamine doesn't feel like sweet candy, but by consuming dopamine it brings you more back into your ordinary state of being. Ending2: It spikes your insulin levels because you desire a certain level of dopamine. The lower your up, the easier it will be for you to get dopamine. Ending3: It enables you to plan ahead and resist impulses so you can achieve your goals. It gives you that " i did it! " lift when you accomplish what you set out to do. Ending4: Dopamine is commonly found in food, drinks, and cigarettes. Energy will run through your body when you exercise, making you physically strengthener and focused.

Answer format: ending1/ending2/ending3/ending4