For a long time, it was assumed that ageing was a gradual, uniform and inevitable process: a slow succession of small physical and metabolic changes that accumulated over the years.
\nHowever, current biomedical research suggests a more complex reality. Ageing does not always progress in a linear fashion. There are stages of biological transition in which certain systems of the body undergo more intense changes, altering our metabolic, immune and functional capacity.
\nThis does not mean that ageing occurs abruptly or in exactly the same way in everyone. Genetics, lifestyle, level of physical activity, diet, sleep and stress all play a decisive role. But it does seem clear that there are particularly significant moments in each individual\u2019s biological trajectory.
\nThe good news is that understanding these changes allows for earlier and more effective intervention.<\/p>\n
Do we age gradually or in phases?<\/strong> Key stages of biological ageing\u00a0<\/strong><\/p>\n Around 40\u201345 years of age: the first metabolic transition<\/strong> Around the age of 60: the systemic transition<\/strong> From 75\u201385 years: functional reserve and frailty<\/strong> What might be your biological weak point?<\/strong> Metabolic profile<\/strong> \u2022 persistent abdominal fat Immune profile<\/strong> Liver profile<\/strong> Renal profile<\/strong> VO2 max: one of the best indicators of healthy ageing<\/strong> Practical strategies for preserving functional capacity<\/p>\n Ages 20\u201330: building reserves<\/strong> Ages 30\u201340: consolidate<\/strong> Ages 40\u201350: protect metabolism<\/strong> Ages 50\u201360: preserving function<\/strong> Over 60: preserving independence<\/strong> For a long time, it was assumed that ageing was a gradual, uniform and inevitable process: a slow succession of small physical and metabolic changes that accumulated over the years. However, current biomedical research suggests a more complex reality. Ageing does not always progress in a linear fashion. There are stages of biological transition in…<\/p>\n","protected":false},"author":1209,"featured_media":3764,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3774","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nutrition-and-diet","category-1","description-off"],"acf":[],"yoast_head":"\n
\nThe classic model of ageing described a progressive and constant decline. However, recent research in molecular biology suggests that certain biological changes do not follow a straight line.
\nA longitudinal study conducted by researchers at Stanford analysed thousands of biomarkers \u2014 including proteins, metabolites, microbiota and other biological compounds \u2014 to observe how they evolved over time.
\nThe findings suggest that a significant proportion of these markers exhibit non-linear changes, particularly around certain ages.
\nThis does not imply that the body suddenly \u2018breaks down\u2019, but rather that some systems may undergo more pronounced periods of biological readjustment.
\nFrom a clinical perspective, this helps explain why many people report noticeable changes at specific stages of life, even whilst maintaining similar habits.<\/p>\n
\nAt this stage, physiological changes usually begin that particularly affect metabolism.
\nMany people notice that:
\n\u2022 they gain weight more easily
\n\u2022 abdominal fat accumulates more quickly
\n\u2022 they tolerate alcohol less well
\n\u2022 they need more time to recover from exertion
\n\u2022 they sleep less well
\n\u2022 they experience more fatigue
\nFrom a biological perspective, changes may occur relating to:
\n\u2022 lipid metabolism
\n\u2022 insulin sensitivity
\n\u2022 body composition
\n\u2022 low-grade inflammation
\n\u2022 tissue repair
\nIn women, this stage may also coincide with the menopausal transition, which adds significant hormonal changes. Progressive metabolic changes are also observed in men.
\nThis period represents a critical opportunity for preventive action.<\/p>\n
\nThe next stage usually involves a broader impact on various systems of the body.
\nProcesses such as the following become more evident here:
\n\u2022 loss of muscle mass (sarcopenia)
\n\u2022 decreased aerobic capacity
\n\u2022 poorer glycaemic control
\n\u2022 decline in immune function
\n\u2022 increased vascular fragility
\n\u2022 progressive renal deterioration
\nIt is common to observe:
\n\u2022 slower recovery from infections
\n\u2022 lower tolerance to intense exercise
\n\u2022 greater difficulty in maintaining strength and mobility
\n\u2022 higher incidence of hypertension
\n\u2022 sleep disturbances
\nAt this stage, prevention is no longer just about avoiding future illness, but about preserving functional autonomy.<\/p>\n
\nIn old age, longevity is no longer the sole determining factor.
\nThe question becomes:
\nHow much functional capacity does one have upon reaching this stage?
\nTwo people of the same chronological age may face radically different realities.
\nOne may:
\n\u2022 walk independently
\n\u2022 maintain social activity
\n\u2022 retain muscle mass
\n\u2022 live independently
\nAnother may experience:
\n\u2022 frailty
\n\u2022 frequent falls
\n\u2022 cognitive decline
\n\u2022 functional dependence
\nThe difference is usually built up over decades.
\nNot everyone ages in the same way
\nOne of the most interesting concepts in precision medicine applied to ageing is that there is no single universal pattern.
\nSome people develop metabolic changes earlier.
\nOthers show earlier deterioration of the immune system, liver or kidney function.
\nThis concept helps us understand why individuals of similar ages age so differently.<\/p>\n
\nThis questionnaire has no diagnostic value, but it can help you identify areas that warrant clinical monitoring.<\/p>\n
\nDo you recognise yourself in several of these situations?
\n\u2022 increasing difficulty in maintaining your weight
\n\u2022 drowsiness after meals high in carbohydrates<\/p>\n
\n\u2022 fluctuating energy levels throughout the day
\n\u2022 reduced tolerance to alcohol
\nThis could suggest abnormalities in:
\n\u2022 insulin sensitivity
\n\u2022 energy metabolism
\n\u2022 glucose regulation<\/p>\n
\n\u2022 more frequent infections
\n\u2022 slower recovery
\n\u2022 persistent fatigue
\n\u2022 slow healing
\n\u2022 increased sensitivities or inflammation
\nThis could indicate immune vulnerability or low-grade chronic inflammation.<\/p>\n
\n\u2022 frequent indigestion
\n\u2022 reduced alcohol tolerance
\n\u2022 feeling of bloating
\n\u2022 abnormal liver enzymes
\n\u2022 persistent fatigue after heavy meals
\nLiver health and lipid metabolism should be assessed.<\/p>\n
\n\u2022 increased frequency of night-time urination
\n\u2022 fluid retention
\n\u2022 swelling in the ankles
\n\u2022 high blood pressure
\n\u2022 increased thirst
\nThese symptoms warrant a medical check-up to rule out renal or cardiovascular disorders.<\/p>\n
\nIf there is one functional marker that is particularly useful for estimating physiological capacity, it is VO2 max.
\nWhat is it?
\nVO2 max represents the maximum amount of oxygen the body can take in, transport and utilise during intense exercise.
\nIt reflects the integrated efficiency of:
\n\u2022 heart
\n\u2022 lungs
\n\u2022 circulation
\n\u2022 muscles
\n\u2022 mitochondria
\nIn simple terms: it is a measure of the body\u2019s actual aerobic capacity.
\nWhy is it so important?
\nA low VO2 max is associated with:
\n\u2022 higher cardiovascular mortality
\n\u2022 poorer metabolic health
\n\u2022 greater frailty
\n\u2022 reduced functional independence
\n\u2022 poorer exercise tolerance
\n\u2022 accelerated cognitive decline
\nConversely, a good VO2 max acts as a protective physiological reserve.
\nIt is not just about sporting performance.
\nIt is about biological capacity.<\/p>\n
\nObjective: to maximise physiological capacity.
\nPriorities:
\n\u2022 strength training
\n\u2022 regular cardiovascular exercise
\n\u2022 avoiding smoking
\n\u2022 adequate sleep
\n\u2022 a high-quality diet
\nEverything built up here will have a cumulative impact.<\/p>\n
\nObjective: maintain muscle and metabolic efficiency.
\nPriorities:
\n\u2022 strength training 2\u20134 times a week
\n\u2022 sufficient protein
\n\u2022 stress management
\n\u2022 maintain healthy body composition<\/p>\n
\nGoal: to prevent accelerated decline.
\nPriorities:
\n\u2022 glucose control
\n\u2022 blood pressure control
\n\u2022 reduced alcohol intake
\n\u2022 quality sleep
\n\u2022 combined strength and cardio training<\/p>\n
\nGoal: to maintain independence.
\nPriorities:
\n\u2022 strength training
\n\u2022 balance exercises
\n\u2022 mobility
\n\u2022 cardiovascular health
\n\u2022 personalised clinical monitoring<\/p>\n
\nObjective: maintaining physical and cognitive function.
\nPriorities:
\n\u2022 daily physical activity
\n\u2022 sufficient protein
\n\u2022 mental stimulation
\n\u2022 active social life
\n\u2022 fall prevention
\nThe real goal is not to live longer
\nLongevity, in itself, does not guarantee well-being.
\nThe real objective is to preserve:
\n\u2022 mobility
\n\u2022 strength
\n\u2022 cognitive ability
\n\u2022 independence
\n\u2022 quality of life
\nAgeing is not just about adding years to life. It is about adding life to those years.<\/strong>
\nAnd many of the decisions that will determine how we reach old age are made long before the first symptoms appear.<\/p>\n","protected":false},"excerpt":{"rendered":"