Andrew Huberman — Stanford professor of neurobiology and ophthalmology and host of the Huberman Lab podcast. This is a solo Essentials episode with no guest.
The gist
In this Huberman Lab Essentials episode, Andrew Huberman breaks down the neuroscience and psychology of grief. He argues that we map our relationships along three braided dimensions, space, time, and closeness, all converging on a brain region called the inferior parietal lobule, and that grief is the painful process of uncoupling attachment from our predictions about where and when we will see someone. He covers why the brain keeps 'looking for' the lost person, the role of oxytocin receptors in why some people grieve more intensely, and a study on emotional disclosure and vagal tone in bereavement. He closes with practical tools, including dedicated 'rational grieving' blocks, avoiding counterfactual 'what if' thinking, morning sunlight to regulate cortisol, quality sleep, and NSDR to support the neuroplasticity that grieving requires.
Big reveals
- Challenges the famous Kubler-Ross five stages of grief as no longer fully supported by neuroimaging and modern research.
- Reveals that one brain area, the inferior parietal lobule, uniquely encodes physical distance, time spacing, and emotional closeness alike.
- Reframes grief as the process of unbraiding attachment from our brain's space-time predictions about a person.
- Links intense, prolonged yearning to having more oxytocin receptors in motivation and craving circuits, not greater capacity for love.
- A bereavement writing study found no overall benefit until researchers split subjects by vagal tone, where only high-vagal-tone people benefited.
- Cites data showing people with complicated grief have significantly higher late-day (4pm and 9pm) cortisol levels.
- Recommends viewing morning sunlight as the single most powerful tool to regulate cortisol and support healthy grieving.
Things worth remembering
- Brain imaging shows grief activates motivation, craving, and pursuit circuits, overlapping with reward pathways.
- A core function of attachment is the brain's ability to predict when and where you will see someone again.
- After a loss the brain keeps making predictions the person will appear, called reverberatory activity, driving the yearning.
- Monogamous prairie voles work hard to reach a lost mate and have far more oxytocin receptors in the nucleus accumbens than non-monogamous voles.
- Counterfactual 'what if' thinking is an infinite, guilt-tied landscape that strengthens maladaptive bonds and should be avoided.
- The bereavement study was published in Biological Psychology under the title 'Emotional disclosure for whom? A study of vagal tone in bereavement.'
- In a healthy person cortisol peaks about 45 minutes after waking and drops to very low by 4pm and 9pm.
- Neuroplasticity, the literal rewiring that grieving requires, happens during deep sleep and non-sleep deep rest (NSDR).