Singer-songwriter Grimes has detailed her training regime as she is announced as the face of Stella McCartney x Adidas's sustainability-inspired Autumn/Winter 2019 collection. And confessed some other less conventional methods of dealing with seasonal affective disorder.

Explaining that she takes a “360 approach to fitness," Grimes spoke about a routine that incorporates sword fighting, hiking, and time spent in a sensory deprivation tank, which she said allows her to “astro-glide to other dimensions – past, present, and future."

“I first maintain a healthy cellular routine where I maximize the function of my mitochondria with supplements such as NAD+, Acetyl L-Carnitine, Magnesium, etc. This helps promote ATP and it's incredibly visceral," she said.

“I then spend 45 minutes stretching before heading into the studio where my mind and body are functioning at peak level, with a neuroplastic goal between 57.5 and 71.5 AphC's (which is my preferred range for my blood type)," Grimes said, describing her routine.

After completing her fitness regime, Grimes goes to the studio to start work on her new album Miss_Anthropocene. In order to maximize “vocal proficiency", the singer spends 25 minutes screaming, followed by drinking honey tea.

Social media users took to Twitter to comment on the post, with some insisting the routine must be a joke, due to the unusual approach to fitness described in the post.

“Can someone just tell me if Grimes is joking or not, life is too short for me to work this out myself," Journalist Rachel McGrath said.

Grimes ended her caption by revealing how she had managed to counteract the effects of seasonal affective disorder, describing an “experimental" surgery she had undertaken on her eyeballs.

“I have also eliminated all blue light from my vision through an experimental surgery that removes the top film of my eyeball and replaces it with an orange ultra-flex polymer that my friend and I made in the lab this past winter as a means to cure seasonal depression," she said.

Grimes has previously worked with Stella McCartney, fronting the campaign for the designer's POP fragrance in 2016.

In an Instagram post announcing the news of Grimes' featuring in Stella McCartney x Adidas campaign, McCartney described the singer as “the perfect embodiment of the Adidas by Stella McCartney core values. She is passionate and outspoken protecting the planet, and a true trailblazer for pushing creative boundaries and inspiring women to unlock their potential in all aspects of their lives."