Many people, such as students and office workers, sleep little on weekdays but sleep much longer on weekends. People believe extra weekend sleep can fully repair the damage caused by irregular daily sleep and broken body clocks, which is called social jetlag. This paper uses basic sleep science and simple experiment results to check if this idea is true. Human sleep has two control systems: sleep pressure and the 24-hour body clock. Weekend sleep can ease tiredness from short weekday sleep for a short time by making deep sleep longer. However, if people wake up over two hours later on weekends, their body clocks will become more disordered. Three natural biological limits stop weekend sleep from fixing long-term clock damage. In short, sleeping in on weekends cannot fully heal health problems from messy weekday sleep. Keeping a steady sleep time every day is the better choice. This paper may give easy sleep tips for students and adults and help protect their body clocks.

Neotropical forests are experiencing increased conversion to agriculture through deforestation, which reduces biodiversity and ecosystem services in these sites. Compared to active restoration, natural regeneration is a more cost-effective approach to restoring abandoned agricultural sites when damage is not extremely significant. However, this passive process can be stagnated, limiting the speed of restoration and impairing the recovery of biodiversity and ecosystem services. Sprouters, individuals that regrow from a stump or roots, may be one reason, as they rapidly resprout and dominate the limited resources following a disturbance. However, literature that makes direct or quantified links between sprouters and stagnation in succession, specifically a decrease in establishment of seeds of other species, is absent. Knowledge on the relative roles of wind and animal dispersal vectors in breaking this dominance is also limited. I conducted a literature review on life history traits of sprouters and seeds, competition between species of different reproductive strategies, animal versus wind dispersal vectors, and the role of proximity in dispersal. I found that sprouters achieve dominance through self-replacement and resource monopolisation; small seeds cannot overcome this barrier while larger seeds likely can, since their seedlings' greater height and shade tolerance allows them to compete against sprouter dominance. Since animal dispersers carrying these large seeds only visit partially recovered sites, proximity to intact forest becomes pivotal, as it controls seed rain supply and thus initial vegetation development through wind-dispersed seeds that attract animal dispersers. Effective natural regeneration would therefore build out from existing intact forests.

Plastic pollution has emerged as a critical global environmental challenge, threatening marine biodiversity and human health through the generation of microplastics. Conventional waste management methods, such as landfilling and incineration, often entail high greenhouse gas emissions and land-use limitations.Consequently, sustainable alternatives are urgently needed. This paper investigates whether bioremediation-specifically the use of enzymes and microorganisms to degrade plastics-offers a viable solution within the Environmental, Social, and Governance (ESG) framework. Through a comparative analysis of traditional waste treatments and bioremediation technologies, supplemented by case studies of recent scientific and industrial applications, this study evaluates the sustainability of biological approaches. The findings suggest that while bioremediation holds significant potential to mitigate plastic waste and support the circular economy by reducing environmental impact, it is constrained by technological limitations, slow degradation rates, and economic costs. Therefore, bioremediation should be viewed not as a panacea, but as a complementary measure to reduction and recycling strategies. Its future application is promising but requires careful integration within the ESG framework.

It is widely known that parasites can compromise a host's health, survival, and reproductive success. However, recent research indicates that parasites can also confer benefits upon their hosts. Centered on the theory of the parasitism-theory continuum, this paper examines three pathways through which parasites affect hosts: modulating the immune system, enhancing disease resistance, and sequestering unwanted nutrients. Furthermore, the paper examines the experimental dependencies inherent in parasitological research and the dynamic nature of host–parasite interactions, providing an objective assessment of these potential benefits and their implications for future research. By systematically discussing the beneficial impacts of parasites across three dimensions - immune system function, disease defense, and resource allocation - and analyzing the mechanisms by which they alleviate inflammatory diseases, detoxify the host, and regulate resource distribution, this paper aims to foster a dialectical understanding of mutually beneficial parasitic relationships and provide a theoretical basis for the development and utilization of parasitic biological resources.

Monoclonal antibodies (mAbs) are a cornerstone of cancer therapy. They offer high target specificity and diverse cytotoxic mechanisms, which render them superior to many conventional cytotoxic treatments. This review examines therapeutic mAbs from two aspects. First, their mechanisms of action are analysed, including direct target modulation (signaling inhibition and ADC payload delivery), Fc‑mediated effector functions (ADCP, ADCC, and CDC), and immune checkpoint blockade (CTLA-4, PD-1/PD-L1, LAG-3, and TIM-3 pathways). In addition, engineering strategies that potentiate these effects are considered as well, such as Fc modification and optimised linker‑payload design for antibody-drug conjugates. Second, the clinical landscape of approved mAbs is reviewed. Their remarkable success in hematologic malignancies (anti-CD20, anti-CD33, anti-CD38) are compared with the greater challenges in solid tumors, where tumour heterogeneity, immunosuppressive microenvironments and primary resistance frequently limit therapeutic efficacy. In solid tumours, biomarker-driven agents (anti-HER2, anti-EGFR) and immune checkpoint inhibitors are central. Immune-related adverse events also represent an important safety concern for checkpoint-blocking antibodies. It is critical to understand these mechanisms and clinical outcomes before optimizing current therapies and guiding next-generation antibody development, including novel ADCs and bispecific antibodies.