A
30-second reel, a chocolate bar and one more level on a mobile game. Some habits make us feel rewarded almost instantly, while others, like exercising regularly or learning a new skill, can take weeks or even months before they start feeling worthwhile. The difference has less to do with willpower than many people think. It has a lot to do with dopamine, one of the brain's most important neurotransmitters. For decades, dopamine has been casually described as the brain's 'pleasure chemical.' But according to psychiatrists, that's an oversimplification.
What Experts Say
"Dopamine is not really the pleasure chemical," says Dr. Samant Darshi, Consultant Psychiatrist and Neuromodulation Expert and Director of Psymate Healthcare, Noida. "It works more like an anticipation signal. It pushes us to seek rewards, repeat behaviours and learn from the outcomes." That anticipation is what keeps people coming back.
Whether it's refreshing social media, opening another packet of chips or checking for new messages, these activities demand very little effort while offering an immediate sense of reward. The brain notices that pattern quickly. "When rewards arrive instantly, the brain begins expecting them," Dr. Darshi explains. "That's why behaviours like scrolling through social media, eating sugary foods or watching short videos can become habits without us even realising it." The catch is that these rewards rarely last. The excitement fades almost as quickly as it appears, encouraging us to look for the next source of stimulation.
Dopamine And Long-Term Habits
Long-term habits work very differently. Think about someone who starts going to the gym. The first few workouts can feel tiring rather than rewarding. Picking up a book instead of a phone often feels like a chore. Learning a language or preparing for a competitive exam can be frustrating long before it becomes satisfying. Yet these are the habits that usually leave people feeling accomplished. "The activities that demand patience and effort may not provide an immediate dopamine reward," says Dr. Darshi. "But they gradually create a deeper sense of satisfaction because they are linked to growth, achievement and personal values."
Researchers often refer to this as delayed gratification, the ability to resist an immediate reward in favour of a larger one later. While it may feel difficult initially, the brain adapts with repetition. A morning walk that once felt like an obligation can eventually become something you genuinely look forward to. That doesn't mean quick rewards are harmful by themselves. Enjoying dessert, watching a favourite show or playing a game are all part of everyday life. Problems begin when instant rewards dominate the day, leaving little room for habits that improve physical or mental wellbeing over time.According to Dr. Darshi, understanding how the reward system works gives people an advantage. "A balanced life doesn't mean avoiding immediate rewards altogether. It means recognising the difference between what gives you a temporary high and what helps you grow in the long run." The brain will almost always choose the easier reward if left on autopilot. Building healthier habits is less about eliminating dopamine and more about teaching the brain that some of life's most meaningful rewards simply take longer to arrive.