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Summary: The adoption of these technologies and the establishment of novel therapeutic interventions is difficult since there is a gap in terms of a complete understanding of the pathophysiological mechanisms at the cellular and molecular level and the lack of data in terms of the assessment of safety and bioavailability differences in the individuals patients

Moreover, Johannesson et al

Hormonal changes in perimenopause and menopause Perimenopause (typically 40-50): Estrogen fluctuations (up and down unpredictably) Progesterone decline begins Growth hormone (GH) production dropping Testosterone declining (yes, women need it too) Irregular periods and cycles Menopause (average age 51): Estrogen drops dramatically Progesterone nearly absent GH continues declining Metabolic rate slows 20-30% End of menstrual cycles Post-menopause (50+): Low estrogen becomes new baseline Further GH decline Muscle loss accelerates (sarcopenia) Bone density concerns Continued metabolic challenges Learn about peptides in our what are peptides guide , how peptides work , and what are peptides used for

Once Elsevier have this information, then they can decide how to proceed