The proteostasis network is essential for maintaining protein homeostasis, ensuring proper folding, conformational stability, and degradation of proteins. As organisms age, the capacity of this network declines, leading to the accumulation of misfolded and aggregated proteins, which is a hallmark of many age-related diseases, including neurodegenerative disorders. The proteostasis network consists of molecular chaperones, proteolytic systems, and their regulators, which work together to maintain proteome balance. However, aging and various stresses impair this network, leading to protein misfolding and aggregation, particularly in postmitotic cells like neurons. Recent studies have shown that proteome-wide changes during aging provide insights into strategies to improve proteostasis. Pharmacological augmentation of proteostasis networks holds promise for delaying age-related pathologies and extending healthspan. The proteostasis network is disrupted in various pathologic conditions, including neurodegenerative diseases, and its decline with age is a key factor in disease progression. The proteostasis network maintains a balanced proteome by coordinating protein synthesis and folding, conformational maintenance, and degradation. Molecular chaperones play a critical role in this process, assisting in protein folding and preventing aggregation. The network also includes pathways for protein degradation, such as the ubiquitin proteasome system and autophagy, which help remove misfolded proteins. Misfolded proteins can originate from various sources, including conformational stress, mutations, and inefficient protein synthesis. These proteins can form toxic aggregates that contribute to disease. The formation of pathological aggregates is characterized by the accumulation of amyloid-like fibrils and soluble oligomers, which are toxic to cells. The toxicity of these aggregates is influenced by their structural properties and interactions with cellular components. To counteract proteotoxicity, the proteostasis network employs various mechanisms, including the prevention of aggregation, the conversion of toxic aggregates into less harmful forms, and the sequestration of aggregates into inclusion bodies. Chaperone-mediated disaggregation and the formation of inclusion bodies are strategies to reduce the toxic effects of protein aggregates. Age-dependent decline in proteostasis capacity is a major driver of age-related cellular dysfunction and degenerative diseases. The proteostasis network deteriorates due to a lack of evolutionary pressure for proteome maintenance beyond reproduction. In model organisms like C. elegans, aging leads to significant changes in proteome composition, including the accumulation of aggregates and reduced proteostasis capacity. Proteostasis network adaptations, such as the upregulation of chaperones and the modulation of protein synthesis and degradation, can prolong lifespan and improve healthspan. These adaptations are crucial for maintaining proteome balance and preventing the accumulation of misfolded proteins. However, enhancing proteostasis may have unintended consequences, such as promoting cancer progression, highlighting the need for careful modulation of the network. Overall, understanding and enhancing the proteostasis network offers promising strategies for delaying age-related diseases and improving humanThe proteostasis network is essential for maintaining protein homeostasis, ensuring proper folding, conformational stability, and degradation of proteins. As organisms age, the capacity of this network declines, leading to the accumulation of misfolded and aggregated proteins, which is a hallmark of many age-related diseases, including neurodegenerative disorders. The proteostasis network consists of molecular chaperones, proteolytic systems, and their regulators, which work together to maintain proteome balance. However, aging and various stresses impair this network, leading to protein misfolding and aggregation, particularly in postmitotic cells like neurons. Recent studies have shown that proteome-wide changes during aging provide insights into strategies to improve proteostasis. Pharmacological augmentation of proteostasis networks holds promise for delaying age-related pathologies and extending healthspan. The proteostasis network is disrupted in various pathologic conditions, including neurodegenerative diseases, and its decline with age is a key factor in disease progression. The proteostasis network maintains a balanced proteome by coordinating protein synthesis and folding, conformational maintenance, and degradation. Molecular chaperones play a critical role in this process, assisting in protein folding and preventing aggregation. The network also includes pathways for protein degradation, such as the ubiquitin proteasome system and autophagy, which help remove misfolded proteins. Misfolded proteins can originate from various sources, including conformational stress, mutations, and inefficient protein synthesis. These proteins can form toxic aggregates that contribute to disease. The formation of pathological aggregates is characterized by the accumulation of amyloid-like fibrils and soluble oligomers, which are toxic to cells. The toxicity of these aggregates is influenced by their structural properties and interactions with cellular components. To counteract proteotoxicity, the proteostasis network employs various mechanisms, including the prevention of aggregation, the conversion of toxic aggregates into less harmful forms, and the sequestration of aggregates into inclusion bodies. Chaperone-mediated disaggregation and the formation of inclusion bodies are strategies to reduce the toxic effects of protein aggregates. Age-dependent decline in proteostasis capacity is a major driver of age-related cellular dysfunction and degenerative diseases. The proteostasis network deteriorates due to a lack of evolutionary pressure for proteome maintenance beyond reproduction. In model organisms like C. elegans, aging leads to significant changes in proteome composition, including the accumulation of aggregates and reduced proteostasis capacity. Proteostasis network adaptations, such as the upregulation of chaperones and the modulation of protein synthesis and degradation, can prolong lifespan and improve healthspan. These adaptations are crucial for maintaining proteome balance and preventing the accumulation of misfolded proteins. However, enhancing proteostasis may have unintended consequences, such as promoting cancer progression, highlighting the need for careful modulation of the network. Overall, understanding and enhancing the proteostasis network offers promising strategies for delaying age-related diseases and improving human