A new practice has spread on the "TikTok" platform, promoted by users as a means to improve sleep, which involves walking barefoot on salt before heading to bed.
The promoters of this trend attribute its alleged benefits to its ability to enhance relaxation and reduce stress.
However, sleep doctors have questioned these claims, citing a lack of scientific evidence proving that this practice has a direct effect on sleep quality.
Content creator Tami Witherhead has contributed to the spread of this practice through videos showing her pouring Epsom salt into a baking tray and then moving her feet over it.
In one of the videos, she stated, according to the "New York Post": "If you're not standing on salt before bed, you're missing out on something amazing."
She also claimed that walking on salt might help with relaxation, exfoliate the skin on the feet, reduce inflammation, and decrease cortisol levels while increasing serotonin, helping the body transition from activity and stress to rest.
Additionally, the practice hasn't been limited to using trays; other content creators have resorted to sprinkling salt on towels or the bathroom floor.
Promoters of this trend have linked the practice to the concept of "grounding," which involves direct contact with the earth, such as walking barefoot on grass or sand.
In contrast, sleep doctors confirmed that there is not enough scientific evidence to support these claims. Dr. Saima Tahir, a sleep medicine specialist, stated: "There is no evidence that standing on salt calms anything."
Although several studies have been conducted on grounding in general, none have specifically tested the use of salt. A small study published in 2004 in the "Journal of Alternative and Complementary Medicine" found that participants who slept while connected to a grounding mat had lower cortisol levels during the night.
However, the limited number of participants and the lack of widespread replicability make it difficult to draw definitive conclusions about this practice.
In addition to the lack of evidence for benefits, walking on salt barefoot may pose skin risks, especially for those who suffer from dry or cracked feet. Neurologist and sleep specialist Chris Winter noted that friction and pressure could cause skin irritation and exacerbate cracks, as well as small wounds that might allow bacteria to enter.
Instead of relying on unproven tricks, sleep experts recommend maintaining regular habits, including setting aside quiet time before bed, avoiding screens and stress sources, and following a routine that helps the body prepare for rest.
If sleep difficulties recur due to anxiety or stress, it is better to consult a specialist doctor rather than relying on trendy practices circulating on social media.