Is there such a thing as the perfect amount of stress?
In 1908, psychologists Robert M. Yerkes and John Dillingham Dodson first mapped the empirical relationship between ‘arousal’ (meaning psychological alertness) and performance.Design feature: doppel’s clear top motor
The clear top motor is perhaps doppel’s most striking feature. You can see it spinning as it creates the heartbeat-like vibration on the inside of your wrist.Fail fast, fail small and fail often — what I learned from presenting our startup “F*** Ups"
Two years ago, along with three other founders, I started a business. It was something none of us had ever done before. Needless to say, we have made plenty of mistakes along the way.Three charts that will change the way you think about workplace stress
Workplace stress is a bigger problem than many of us realise. Here are three charts which demonstrate the scale of the problem in North America and one statistic which illustrates the situation in the UK.Exploring the Effect of the Tempo of Music on Heart Rate
When we describe doppel we often compare it to music. We say that like listening to music, a fast rhythm helps you to feel more alert, a slower rhythm is calming.How Does Psychological Well-Being Vary with Age?
As we age, our perspective on situations and ourselves can change. A large US study shows us how factors like stress, anger, happiness and well-being change with age.How to design and develop a product collaboratively
At doppel, we’ve spent the past three years developing our first product. Now that we’ve begun manufacturing, we wanted to reflect on our design and development process and share some of the lessons we’ve learnt along the way.What is a Circadian Rhythm?
Circadian Rhythms are the changes made throughout your body that follow the 'master clock' in your hypothalamus. These changes occur over the course of a day. In this post, we go over what they are, and how you can 'reset' your system.Does smiling make you feel happier?
Do we smile because we’re happy? Or are we happy because we smile?How to concentrate, according to science: Take a break
This week we’re exploring the research around the generally agreed principle that taking a break is good for your levels of concentration.Exploring biorhythms with The Light Box Experiment
When researching doppel, we wanted to see how far you could push our natural response to rhythm. Is it just sound? What would happen if you could feel a rhythm? Or if you could see a rhythm?