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Testosterone gel vs injection: what changes depending on the route of administration
The route a drug takes into the body changes how much of it reaches the bloodstream, and how fast. Here we explain what bioavailability is, why the route matters, and what the evidence says about the idea that injections are always "stronger".
Aug 05, 2026Leer →
Hair supplements (biotin, saw palmetto…): what works and what does not
Biotin, hair complexes, plant extracts: every month a new bottle appears promising to stop hair loss. We look at what the evidence really says, what effect nutraceuticals have and why biotin can give you a scare on a blood test.
Aug 04, 2026Leer →
Alopecia areata: what it is and how it differs from common hair loss
Alopecia areata is not the same as ordinary balding. We explain what defines it, why it happens, how it is diagnosed and how it differs from androgenetic alopecia, based on the evidence available today.
Aug 03, 2026Leer →
Vaginal dryness and painful sex: the side of menopause nobody talks about
Vaginal dryness and pain during sex are common symptoms after the menopause and form part of what is known as genitourinary syndrome. We explain why it happens, what the evidence says and why effective treatment exists even though many women never seek help.
Aug 03, 2026Leer →
Testosterone replacement therapy (TRT): what it is, how it is given and what to expect
What testosterone therapy really is, who it is indicated for, how it is prescribed in Spain and what the evidence says about its benefits and its risks, without the hype or the anti-ageing promises.
Aug 03, 2026Leer →
Prediabetes: what it is and how it is managed
Prediabetes is not an established disease, but a state of risk. We explain what the numbers mean, why it matters beyond blood sugar and what the evidence says about how to manage it.
Aug 03, 2026Leer →
Menopausal hormone therapy (HRT): what it is, who it's for and its real risks
For twenty years, a single study from 2002 frightened an entire generation of women and their doctors. We now know its findings were misread. Here's what menopausal hormone therapy really is, who it makes sense for and what its real risks are, with the figures on the table and the nuances that go with them.
Jul 31, 2026Leer →
Weight regain after stopping treatment: why it happens and how it is managed
Regaining some weight after stopping a GLP-1 receptor agonist is an expected physiological phenomenon, not a failure of willpower. We explain what the evidence from the semaglutide and tirzepatide trials shows, what comes back and what doesn't, and where things stand in Spain.
Jul 29, 2026Leer →
Low testosterone (hypogonadism): the symptoms that actually matter and when to worry
Low testosterone has become a catch-all explanation for tiredness or low mood, but genuine hypogonadism is something else: it requires specific symptoms plus a confirmed blood test, and it is less common than the marketing suggests. Here is what the evidence says, which symptoms really count, and why a single low reading diagnoses nothing.
Jul 27, 2026Leer →
Finasteride for hair loss: how it works, results and side effects
Finasteride is one of the treatments authorised in Spain for androgenetic alopecia in men. We explain how it acts on DHT, what the trials show, which side effects the EMA has been monitoring since 2025 and why the decision is always an individual medical assessment.
Jul 24, 2026Leer →
Baricitinib and JAK inhibitors: the new treatment for alopecia areata
Baricitinib (Olumiant) is the first systemic drug authorised in Spain for severe alopecia areata: in adults and in adolescents aged 12 and over, and publicly funded in adults. Here is what it is, what the trials found and where the caveats lie.
Jul 24, 2026Leer →
Perimenopause: what it is, when it starts and how long it lasts
Perimenopause is the transition towards menopause, not a single point in time. We explain what it is, why it happens, how long it usually lasts and what the evidence says about the symptoms and their treatments, with nuance and without scaremongering.
Jul 22, 2026Leer →
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