A vibration, a small banner, or a familiar sound—these signals often trigger an automatic response: reaching for a smartphone. This behavior can give the impression of being "addicted" to notifications. However, Dr. Juliette Hazart, a physician specializing in addiction and a conference speaker in digital health, explains that the concept of "addiction to notifications" is not officially recognized in medical classifications. Notifications themselves are not classified as addictive substances or behaviors. Yet, they can reinforce a checking reflex and, in some cases, contribute to problematic smartphone usage. The reflex to check one's phone is driven by the expectation that something meaningful may be happening. Over time, this can become habitual, leading people to reach for their phones almost instinctively when they vibrate or ring. Some individuals may even experience "phantom vibrations" or "phantom rings," a common phenomenon where they believe their phone is vibrating or ringing even when it is not. This does not necessarily indicate addiction, but it highlights how deeply ingrained the checking behavior can become. According to Dr. Hazart, the key issue is not the number of notifications received, but the underlying motivations for checking the phone and whether individuals can maintain control over their usage. Notifications can reinforce checking behavior, especially when they are associated with novelty, immediacy, or social interactions. The brain's reward system, involving dopamine, plays a role in these learning and anticipation processes, but it does not independently lead to addiction. The real warning signs of problematic phone use are not the quantity of notifications or screen time, but the loss of control and the consequences of such usage. If someone struggles to reduce their phone use despite wanting to, or if their phone use leads to negative outcomes such as disrupted sleep, reduced concentration, or strained relationships, it may be a sign of a deeper issue. In extreme cases, phone use can become dangerous, such as when it interferes with driving or other critical tasks. To regain control, it is not always necessary to disable all notifications. A more comprehensive strategy includes sorting through notifications to keep only those that are essential, protecting sleep by limiting phone use in the bedroom, choosing specific times to check the phone, moving the phone away during important tasks, and reflecting on the reasons for checking the phone in the moment. These steps can help individuals regain control over their smartphone use and reduce the impact of notifications on their daily lives.