Deliberately induce an adrenaline release (for example, by taking a quick cold shower) immediately after a learning session to stimulate memorization and anchor the information.

noli's read

The idea that the release of hormones linked to a stimulation response, such as adrenaline, immediately after learning helps consolidate information is based on sound biological foundations. Experimental research in humans, such as that conducted by Larry Cahill and his team (2003), has demonstrated that localized thermal stress (ice water test) right after learning improves long-term memory. Furthermore, scientific reviews (such as that of Gold et al., 2014) confirm that adrenaline released into the body indirectly stimulates neural consolidation processes. Nevertheless, the specific practical application proposed—taking a full cold shower at home after studying—constitutes an extrapolation of these standardized laboratory tests. Other studies (such as those by Trammell and Clore, 2013) note that the impact of acute stress varies according to the type of information learned and can sometimes be counterproductive if it generates too much discomfort or distraction. The underlying mechanism is therefore entirely valid, but the post-study cold shower remains a promising practical method that still lacks direct validation in real-life conditions.

the sources

1. 1NIH Office of Dietary Supplements 2026
2. 2Manson JE et al. 2019
3. 3Bhatt DL et al. 2019
4. 4Khan SU, Lone AN, Khan MS, et al. 2021
5. 5Liao Y, Xie B, Zhang H, et al. 2019
6. 6hubermanprotocols.com (fan reference guide)