Phone Addiction Scientist: Doing This Gives You An Hour Back Every Day! | Dr Sahar Yousef

Dr. Sahar Yousef says her mission is to bring brain and body science to the public so people can work in line with how they actually function. She compares biological principles with the laws of physics: people accept gravity without trying to negotiate with it, yet routinely ignore biological requirements for sleep, stress regulation, attention, learning, and innovation. In her view, modern work focuses obsessively on the “what”—deliverables, quarterly goals, and annual goals—without teaching people the “how” of getting those things done. Yousef is the founder and managing director of the Becoming Superhuman Lab, whose goal is to help people get more done in less time with less stress. She studied at UC Berkeley and specializes in cognitive neuroplasticity: how the brain changes, adapts, and potentially improves. Her work targets attention span, memory, and fluid intelligence. Asked how people describe the problem she addresses, she cites “brain fog” and recalls a female CEO telling her, “I can hear my own thoughts again.” Yousef says constant technology consumption has filled every gap between meetings and tasks, leaving people unable to hear themselves or generate original thoughts. She does not claim to cure major world problems; instead, she wants to unblock people so they can do the important work they already want to do.

To demonstrate how distraction operates, Yousef describes observing an executive at a Fortune 10 technology company. He was trying to prepare a board presentation involving important data and decisions, but he sat in a glass office in the middle of a busy floor. He had email open on a second monitor, two phones face-up beside him, an Apple Watch, people walking past, and a chief of staff interrupting him. Yousef estimates he received only about 30 seconds of uninterrupted focus at a time, citing research that a knowledge worker stays focused on one screen for an average of 47 seconds before another distraction intervenes. She argues that this is not a problem limited to executives. If a team were given a billion dollars to cure cancer, nobody would deliberately equip it with constant notifications, Slack messages, meetings, and calls, then expect its best thinking. Yousef calls the basic cleanup of digital distractions “digital hygiene,” adding that humanity may need to “become human” before becoming superhuman. She explains that attention and memory are inseparable: people cannot remember or learn anything they did not attend to. Since notifications and interruptions reduce attention, they also damage learning and memory. Her starting point is therefore not adding more productivity tools, but removing the systems that continually drain focus.

Yousef says technology is both one of humanity’s greatest inventions and a major source of friction because its default settings are designed to maximize engagement. She argues that this includes not only TikTok and social media but also ordinary workplace tools such as email, Slack, and Microsoft Outlook. A software company that wants customers to renew an annual contract can point to high engagement—constant messages, activity, and usage—as evidence that the product is indispensable. That incentive is different from helping employees complete their most important work. The host objects that people keep email or WhatsApp open because an urgent message may arrive, such as a partner needing to be let into the house. Yousef distinguishes these genuine emergencies from the mass of ordinary messages by calling important contacts “VIPs.” She compares this to mail delivery: a package requiring a signature produces a knock at the door, while routine mail is left in the mailbox. Her recommendation is to create VIP notifications for a partner, boss, key clients, or other truly urgent contacts, while filtering everything else. In her own inbox, she uses three keywords, including her first name, so messages involving her can break through without every copied email interrupting her train of thought. Her central mantra is, “I deserve better than the default settings.”

When the host asks for the first practical step, Yousef says sleep is foundational. She compares a sleep-deprived founder averaging five hours a night with a car that is literally on fire but whose owner asks the mechanic to improve the engine. Before optimizing performance, the fire must be put out. She defines adequate sleep as at least seven hours per night and says insufficient sleep harms cognitive performance and emotional regulation, making people more irritable and less effective. The next intervention is the relationship with technology. Yousef uses a phone lockbox to demonstrate physically separating the device from the person doing focused work. She says focus is required for memory and learning, and argues that attention spans have declined alongside the rise of constant notifications. Her solution is to create friction: keep the phone out of sight, turn off most notifications, and allow only VIP messages through. She also recommends grayscale. In a study from her lab, healthy working professionals kept their phones in grayscale for three weeks; on average, they spent one hour less on their phones each day—seven hours a week. She explains that grayscale makes the phone less neurologically stimulating, making it easier to stop scrolling, especially late at night when willpower is low.

Yousef compares digital addiction with the food industry’s use of sugar and processed food. Food companies increase stimulation by adding sugar, salt, and fat; reduce friction by making products packaged, fast, and constantly available; and reduce satiation by removing protein and fiber, so people remain hungry. She says technology follows the same three-part playbook. Platforms increase stimulation through saturated colors, bright screens, short-form video, and intermittent rewards. They reduce friction through the infinite scroll, which removed the stopping point once provided by page numbers or the end of a curated feed. They reduce satiation by creating the illusion that scrolling satisfies fundamental needs for social connection, novelty, learning, and belonging. The algorithm may initially serve mediocre content because it knows the user has just arrived and still has attention to spare. When the user is about to leave, it serves a highly relevant “jackpot” clip, reinforcing the behavior. Yousef links this to variable rewards in casinos, slot machines, and even toxic relationships involving cycles of neglect and love-bombing. She recommends replacing infinite consumption with portion control: increase friction by parking the phone away, turning off notifications, and consuming content in defined quantities. She does not call all technology bad. She prefers long-form content such as films, podcasts, and substantial learning, and says people should meet social needs through real interaction—dinners, conversations, family, and friends—rather than mistaking scrolling for connection.

For deep work, Yousef introduces the “focus sprint,” a five-step method that her research associates with doing up to twice as much work while making fewer mistakes and feeling less friction. First, block the time on the calendar in advance. Knowing a sprint is coming activates anticipatory networks, just as the brain releases cortisol and adrenaline before public speaking. A public calendar also tells colleagues that the person is intentionally unavailable. Second, define a concrete output and break it into an execution list. “Work on the deck” is too vague; the list might specify finishing slide three, emailing John for data for slide 17, and building a particular table. She distinguishes MITs—most important tasks—from LITs, the smaller, less important tasks that create fast dopamine, such as email or signing a document. Each morning, people should ask how much uninterrupted time they have and which one to three tasks would make the day a success. The MIT should be broken into small actions so progress is visible. If someone cannot identify an MIT, Yousef says they need to clarify their long-term direction: their “Everest.” She recommends imagining the deathbed and asking what must have been experienced or accomplished for life to feel well lived. The host identifies love, family, being a role model, and making the world better. Yousef says this clarity makes trivial distractions easier to reject and turns a distant goal into the next manageable step.

Yousef says the brain is a monotasking machine, not a multitasking machine. Humans survived by focusing on relevant signals and responding to threats, yet roughly a third of the cortex is devoted to looking and listening, making open offices and notification-heavy environments especially disruptive. She explains that people also seek distractions when work becomes uncomfortable. Feelings such as overwhelm, anxiety, confusion, loneliness, or frustration trigger the brain’s problem-solving system; the quickest modern escape is often TikTok, food, pornography, or another numbing activity. A focus sprint therefore requires removing obstacles: put the phone away, use noise cancellation or music only if it helps, and choose instrumental music or a language the worker does not understand. Yousef recommends setting a timer because visible progress makes people work faster, invoking Parkinson’s Law: work expands to fit the time available. She also says the timer creates a clear beginning and end, like a children’s cleanup song. Breaks should be real breaks. In a 2024 Nature study, participants were assigned no break, TikTok-style scrolling, looking at nature, or staring ahead. Nature was the best recovery option, doing nothing was next, and scrolling was worst because it continued to load the brain with information. Yousef suggests walking, getting natural light, using both hands to prepare food or a drink, and doing something immersive such as the host’s DJ practice.

For creative problem-solving, Yousef says people should first load the brain with the relevant information and keep the problem active, then walk away. Remaining in the same problem state creates a kind of neural traffic jam; changing environments through walking, showering, or washing dishes activates different networks and may allow two previously separate ideas to connect. She applies a similar principle to rumination but warns that repeatedly narrating the same trauma can strengthen the associated neural network. Her recommendation is to acknowledge what is happening, then deliberately redirect attention and build a different narrative rather than repeatedly reinforcing an identity of victimhood. She also explains three chronotypes. AM-shifted people naturally wake early and have their best cognitive performance in the morning; they represent about 25% of the population in her account. PM-shifted people can stay up late and sleep in, tend to have energy that rises later, and make up about 16%; Yousef includes herself and the host in this group. The majority are biphasic, with a morning peak, an afternoon dip, and a possible second wind. She recommends scheduling focus sprints around the individual’s biological peak rather than assuming everyone should work early. Finally, Yousef warns that AI and engagement-driven technology could create a small “thinking class” with the attention and education needed to reason independently, while the distracted majority simply follows instructions. She says technology can improve medicine and economics, but people must retain agency and avoid letting AI think for them.

The conversation ends with Yousef explaining how to become luckier. First, a person must define what “lucky” means for them and clarify their Everest, goals, and desired direction. Once that target is repeatedly brought to mind, the brain begins scanning for evidence and opportunities related to it. She distinguishes this from empty manifestation: wanting Barack Obama on the podcast would require not only saying it but keeping it as an active objective so that relevant people and openings become noticeable. The same attention system can reinforce either confidence and opportunity or victimhood and limitation. The host then performs Yousef’s multitasking demonstration. In the first trial, he writes “I’m a great multitasker” on one line and the numbers one through 20 on another, completing the two tasks in 31 seconds. In the second, he alternates letters and numbers—“I, 1, A, 2”—and struggles to keep track, reaching only number eight at roughly the same point. He estimates that alternating tasks made him about 60% slower. Yousef calls the mental residue carried from one task into another “attentional baggage” and says workers pay an energetic and time cost each time they switch contexts. She cites an average of more than two hours a day lost by knowledge workers bouncing between screens and tasks. Her closing recommendation is to measure the problem rather than rely on shame: assess digital dependence, attention span, and chronotype. She points listeners to the MMM Institute for free assessments and says that scientific data can show where the biggest drains are before people change their systems.