Yes, a baby can be lactose intolerant, though true congenital cases are rare; most symptoms are temporary or from cow’s milk protein allergy.

No, a baby cannot be made without sperm in humans; every proven method of human reproduction uses sperm, including IVF with donor sperm.

Yes, a baby can be congested without being sick; dry air, tiny nasal passages, and irritants often explain baby congestion.

No, a baby shouldn’t stay outdoors at 100°F; only brief, shaded outings with cooling and close monitoring fit this topic’s safety rules.

No, true intolerance to human breast milk is extremely rare; most symptoms come from other causes or feeding patterns.

Yes, a baby can ride on your back in a carrier once they sit unassisted and their airway stays clear.

Yes, babies can be outside in 80°F weather with shade, fluids, and close monitoring; keep outings short and follow the heat index and sun safety rules.

Yes, a baby can be outside at 90°F for short, shaded periods with cooling, hydration, and strict heat checks.

Yes, a baby can be overfed; watch hunger and fullness cues, growth, and feeding patterns to avoid issues.

No, babies should not be in hot tubs; the heat and drowning risks make hot tubs unsafe for infants.