Why we build what we build.
Serena is built on peer-reviewed research and authoritative public health guidance. Every claim we make traces back to one of these sources.

On hypnosis
- Mayo ClinicHypnosis
One of the most widely cited clinical overviews of hypnosis, covering its uses for behaviour change, pain, and anxiety.
- National Institutes of Health · NCCIHHypnosis
The U.S. government’s summary of the evidence for hypnotherapy across conditions including IBS, anxiety, pain, and sleep.
- American Psychological Association · Division 30Society of Psychological Hypnosis
The APA division that sets the modern clinical definition of hypnosis and publishes research on its therapeutic use.
On weight and behaviour
- World Health OrganizationBody Mass Index
WHO’s global health observatory page on BMI, the authoritative source for how weight is measured at population scale.
- Centers for Disease Control and PreventionHealthy Weight with Diabetes
CDC’s practical guidance on sustainable weight change for people with diabetes, grounded in U.S. clinical data.
- American Diabetes AssociationWeight Management
ADA’s evidence-based guidance on weight as a factor in metabolic health, published for patients and clinicians.
Serena ist ein Wellness-Begleiter, der dein Verhältnis zu Essen, Körper und Schlaf unterstützen soll. Es ist kein medizinisches Gerät, kein Diagnosewerkzeug und kein Ersatz für professionelle medizinische oder psychologische Betreuung. Wenn dich etwas belastet, wende dich bitte an einen qualifizierten Kliniker.