Low Birth Weight

The goal of this clinical trial is to learn if listening to a relaxation audiorecording during breastfeeding improves breastfeeding and infant outcomes and maternal well-being in a low-income country setting. The main questions it aims to answer are: * Does listening to a relaxation audiorecording during breastfeeding improve infant growth? * Does listening to a relaxation audiorecording during breastfeeding reduce maternal stress and anxiety? Researchers will compare listening to an audiorecording on a digital recording device to receiving the digital recording device without an audiorecording to see if relaxation audiorecordings work to improve breastfeeding, infant growth and maternal well-being. Participants will: * Listen to an audiorecording twice daily while breastfeeding for 12 weeks * Have study visits at 1, 2, 4 and 12 weeks for checkups and tests * Let us know what they think of the audiorecording

Periodontal disease in pregnant women has been implicated as a potential risk factor for adverse pregnancy outcomes, including being born preterm, small-for-gestational age, and/or low birth weight. Infants who have at least one of these outcomes, known as small vulnerable newborns (SVN)), are at increased risk of early death and poor infant growth and development. Rigorous, high-quality randomized trials are needed to evaluate whether improving the periodontal health of pregnant women can reduce the risk of adverse pregnancy outcomes in areas like South Asia, where these outcomes are common and neonatal mortality remains high. This study is a community-based, randomized controlled trial (n=2,280) to evaluate a package of oral health interventions delivered to pregnant women in the first trimester until delivery on the incidence of SVNs in rural Sarlahi District, Nepal. The intervention package will include a daily antiseptic oral rinse and intensive oral hygiene education and instruction. Both intervention and control groups will be provided a manual toothbrush and toothpaste. The investigators will determine intervention effects on incidence of SVNs and individual outcomes of preterm birth, small-for-gestational age, and low birth weight. In a biospecimen sub-study (n=200), the investigators will collect venous blood, gingival crevicular fluid, and plaque in early and late pregnancy to explore relationships between subgingival inflammation, systemic inflammation, and SVN types and other adverse pregnancy outcomes. If efficacious, a low-cost package of oral health interventions - including an antiseptic oral rinse, intensive oral hygiene education and instruction, and provision of a manual toothbrush and toothpaste - could improve maternal and newborn outcomes at this critical time of growth and development.

The goal of this clinical trial is to learn if extended admission to the Kangaroo Mother Care (KMC) ward helps to prevent postpartum depression in mothers of low birthweight infants in a low-resource setting whose newborns were admitted to the neonatal intensive care unit (NICU) more than standard of care KMC. The main questions it aims to answer are: * Does longer KMC decrease the incidence of postpartum depression in mothers of low birthweight infants in a low-resource setting? * Does longer KMC improve neurodevelopmental outcomes of low birthweight infants at 6, 12, and 18 months in a low-resource setting? * What are the barriers to practicing KMC in low birthweight infants following hospital discharge in a low-resource setting? * What is the prevalence of paternal depression in a low resource setting? * Is it cost effective to admit preterm mother-infant dyads to the KMC ward following NICU discharge? Researchers will compare (extended admission to the KMC ward) to (standard of care KMC) to see if extended KMC decreases PPD in mothers of preterm infants in low-resource settings. Participants (infants) will: * At time of discharge from the NICU, when clinically stable, spend either \< 2 days in the KMC ward with their mothers or spend longer in the KMC ward until discharge. * Return to clinic at routine follow-up visits (at 2 weeks and at 6-8 weeks) where mothers will be screened for postpartum depression and fathers will be screened for depression. * Return to clinic for neurodevelopmental screening at 6, 12, and 18 months where mothers will be screened for postpartum depression and perceived social support and fathers will be screened for depression.

The investigators recently demonstrated a increase in liver fat in early middle-aged LBW compared to normal birth weight (NBW) men, and 20% of the LBW - but none of the normal birth weight (NBW) - men had previously unknown non-alcoholic fatty liver disease (NAFLD). Here the investigators will further examine the Increased risk of non-alcoholic fatty liver disease in low birth weight individuals by performing a validation study.