About Tracy

Tracy Cassels is the primary writer for Evolutionary Parenting. She obtained her B.A. in Cognitive Science from the University of California, Berkeley, an M.A. in Clinical Psychology from the University of British Columbia, and is currently a Ph.D. Candidate in Developmental Psychology, also at the University of British Columbia, where she is studying how certain evolutionary factors affect children’s empathic behaviour. Tracy serves as an Adviser to the Children’s Health & Human Rights Partnership and previously worked at the Canadian Council on Learning, a non-profit agency dedicated to researching myriad elements of learning across the lifespan. Most importantly to her, though, she is a mother to daughter Madeleine (Maddy), stepson Desmond, and wife to husband Brian.

No Stress in Sleep Training: A Response


A reply to a piece suggesting that there are definitely no long-term repercussions of any kind of sleep training and how the research cited doesn't support the claims at all.

No Stress in Sleep Training: A Response2019-03-28T22:23:43-04:00

How Successful are Behavioral Sleep Interventions?


People are jumping on new research that supposedly says extinction sleep training methods are successful, but given this is survey data, we have to be very careful about any conclusions. Here's why.

How Successful are Behavioral Sleep Interventions?2019-03-28T22:23:43-04:00

Bright Lights Before Bed = No Sleep?


New research highlights the effects of light on melatonin levels in preschool children. What does this tell us about our evening habits for all kids?

Bright Lights Before Bed = No Sleep?2019-03-28T22:23:43-04:00

Should Parenting Be This Hard?


We take it for granted in our society that parenting is hard. Really hard. But how did we get to this stage? Was it always this way?

Should Parenting Be This Hard?2019-03-28T22:23:43-04:00