What are ultradian rhythms?

Ultradian rhythms are 90-120 minute cycles that govern your body's natural energy and focus patterns throughout the day. Unlike circadian rhythms (24-hour cycles), ultradian rhythms repeat multiple times daily and determine when you're at peak cognitive performance versus when you need recovery.

How does Ultradia work?

Ultradia structures your workday around 90-minute focused sprints followed by 20-minute recovery periods. You commit to specific tasks at the start of each sprint, execute with a timer, and track your progress. The community accountability feature lets you see what others in your circle are working on in real-time.

Ultradia is built first for real-estate agents, sales pros, and solo operators whose income depends on doing the work — and for any self-driven professional who does better with people in the room. If you struggle with distraction, procrastination, or staying consistent on your highest-value work, it's built for you.

How is Ultradia different from Pomodoro or time-blocking?

Unlike Pomodoro's 25-minute intervals, Ultradia uses 90-minute cycles aligned with your brain's natural focus rhythms. Unlike solo time-blocking, Ultradia adds community accountability—you can see what others are executing and be seen. This social commitment dramatically increases follow-through on your daily commitments.

Does body doubling actually work?

Many people find it highly effective. The mechanism is a mix of accountability and reduced task-switching — and research shows interruptions and task-switching carry a real cognitive cost. It's especially popular in the ADHD community for overcoming task-initiation barriers.

Do I need to talk to my body double?

No. Parallel, mostly silent work is the point. A short check-in at the start and end to state and review your intention is helpful, but the session itself is for focused work, not conversation.

Can body doubling work remotely?

Yes. Video coworking rooms let you body double from anywhere — you get the presence and accountability of working alongside others without being in the same physical space.

What's the difference between body doubling and coworking?

Coworking is the broader practice of working alongside others. Body doubling specifically emphasizes another person's presence as a focus aid. Rhythm-based coworking adds 90-minute sprint structure and shared recovery on top of that presence.

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Body Doubling for Focus: Why Working Alongside Others Helps You Get More Done

Name: Ultradia
Rating: 4.8 (127 reviews)
Author: Pete Moulton

Pete MoultonJune 9, 20266 min read

Body doubling means working alongside another person — in the same room or on a video call — so their presence helps you stay on task. It works because visible accountability and shared focus reduce the pull of distractions and the time lost to task-switching. You don't need a partner directing your work; you just need someone working in parallel while you do your own focused work.

~23 min

Average time to fully refocus after an interruption

Source: Mark et al., UC Irvine

Attention residue

Lingering focus on a prior task after switching

Source: Leroy, 2009

What is body doubling?

Body doubling is the practice of working in the presence of another person to make it easier to start and sustain a task. The other person doesn't help with your work — their presence is the point. The technique grew popular in the ADHD community as a way to overcome task-initiation barriers, and remote work has since made it mainstream through video coworking.

Why it works

Two well-documented effects explain a lot of body doubling's power. First, task-switching is expensive: research by Gloria Mark at UC Irvine found it takes an average of about 23 minutes to fully return to a task after an interruption. Second, Sophie Leroy's work on 'attention residue' shows that part of your focus stays stuck on the previous task when you switch. Working alongside someone reduces the temptation to switch in the first place.

On top of that, simply being seen creates gentle accountability. When someone knows what you sat down to do, you're far more likely to actually do it.

Body doubling vs. coworking on a rhythm

Classic body doubling is often one-on-one and unstructured. Coworking on an ultradian rhythm adds structure to the presence: everyone works the same 90-minute sprint, takes recovery together, and shares visible commitments. Instead of a single partner, you focus alongside a whole room of people working the same way — accountability plus a method, not just company.

How to start body doubling

Getting started is low-effort: join a live coworking room or pair with one focused partner, state the one thing you intend to finish, then work a sprint in parallel. A brief check-in at the start and end keeps the accountability real without turning the session into a meeting.