girl and dog sleeping on gray pavement

Melatonin and Cancer in Dogs

Melatonin is most well-known as a supplement to help us sleep. How could this help our dogs? And, more importantly, how could it help a dog with cancer?

Research has shown deep sleep each night, in complete darkness, can actually help prevent the development of cancer. Of course, it won’t remove the risk completely, but it’s known to reduce the risk.



Night Shifts Increase Risk of Cancer

Many studies conducted on humans can actually be utilized for our dogs as well. Although our bodies aren’t exactly similar, there are many similarities among the two.

Research has found female nurses who stay up to work during the night have an increased risk of breast cancer.  And, guess what the cause is thought to be from? Lack of sleep during the night hours.

When our dogs are resting, a hormone known as melatonin is released by the pineal gland in the brain. The deeper the sleep, the more melatonin is produced. In most cases, the melatonin our body produces (and our dogs if they are on the same schedule) peaks at about 1:30 AM.

Here’s the amazing news we have discovered from the research we have completed: melatonin is a major cancer fighter.

Research Studies Involving Melatonin

Cancer metastasis: Mechanisms of inhibition by melatonin

Melatonin and breast cancer: Evidences from preclinical and human studies

Melatonin and cancer

Melatonin and cancer: From the promotion of genomic stability to use in cancer treatment

Melatonin for the Prevention and Treatment of Cancer

Melatonin, mitochondria, and the cancer cell

Molecular and cellular mechanisms of melatonin in osteosarcoma

MT1 and MT2 melatonin receptors: A therapeutic perspective

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