A personalized early-warning system for heat and cold stress. It estimates your cardiovascular risk level (safe / caution / danger) for any Spanish location, day and hour, from thermal comfort indices and a conformal-weighted ensemble of XGBoost (heat), RandomForest (cold) and an LSTM with province embedding, and then personalises the population risk with literature-based individual factors — age, sex, body fat, comorbidities, medication, acclimatisation, activity. Live forecast from Open-Meteo; target built from MoMo mortality attributable to heat (X30) and cold (X31).