Ekaterina Yalfimova
Researcher at Resalent. She studies the science of habit timing — how sleep, heart rate variability, recovery and daily context shape the moments when habits actually stick. Her writing turns that research into practical guidance for building habits around a real, changing day.
How to build habits when every day looks different
When everything goes to plan, habits are easy. Real life is messier — here's why the problem is usually timing, not motivation.
Read articleCan HRV, sleep, and calendar data find the best time for a habit?
What HRV means, what sleep debt changes, and how your daily context decides the moment — instead of fixed reminders.
Read articleHabit tracker vs routine planner vs reminder app
Each tool solves a different problem. How they compare when your schedule and state keep changing — and the category most people miss.
Read articleSmart habit planner for busy professionals
Build habits around sleep, HRV, calendar load and real energy — so work and self-care stop competing for the same hour.
Read articleOptimal training timing: train more effectively
Plan workouts around sleep, HRV, recovery, calendar and weather. Train at the right time instead of a fixed one.
Read articleWhen mind and body are in sync: meditation timing
Evening meditation seems natural — until your mind is racing or your energy is gone. The problem isn't motivation, it's timing.
Read articleSmart focus allocation for students and professionals
Find your cognitive windows and protect them: deep work when your brain is ready, admin tasks when it isn't.
Read articleWhy 6:30 AM workouts fail for most people
The alarm goes off. You slept five hours. Your app fires the notification anyway. A closer look at why fixed-time reminders lose to biology.
Read articleReady to feel the difference?
Give Resalent a week to learn your rhythm. Free to start, 3 habits included.
