Romantic relationships can lead to the addiction of a specific person such as being obsessed with thinking of that person all the time and the capacity for risk-taking to get to that person. These behaviors are thought to reflect those of someone who is addicted to a drug. The same brain chemicals — large amounts of dopamine and norepinpherine — and the same brain pathways and structures are active when in love, and when being high on crack cocaine. Therefore, this leads to the belief that addictive drugs affect the brain in ways similar to love, Marsh says, which can help explain the painful, withdrawal-like symptoms of a breakup.
Finally, the researchers aren’t sure how klotho seems to be generating this effect because the protein is too big to pass from the body into the brain. For a long time, we’ve studied the brain in isolation from the body – with the brain mostly telling the body what to do, and the body acting like a series of censors that give the brain useful data. But this study like our growing understanding of the connection between our microbiome and brain health, and exercise and brain health, this study touches on our growing understanding of how the body connects to the brain to help make the brain more resilient.