What is Geluk often associated with in science?

Which part of the brain is often linked to Geluk and positive emotions?

What hormone is often called the 'happiness hormone'?

Studies about Geluk often examine the effects of what practice?

Which of these activities is scientifically linked to increased Geluk?

What is a key element in many scientific definitions of Geluk?

Which of these is NOT typically associated with Geluk research?

What type of scientific study often tracks Geluk levels in people over long periods?

In positive psychology, what does Geluk relate to?

What environmental factor can impact Geluk levels, according to some studies?